INSTRUCTION MANUAL
ENGLISH FRANÇAIS ESPAÑOL DEUTSCH ITALIANO PORTUGUÊS 中文 （繁体字） 中文 （簡体字）
Thank you for your purchase of this Citizen watch. Before using the watch, read this instruction manual carefully to ensure correct use. After reading the manual, store it in a safe place for future reference. Be sure to visit the Citizen website at http://www.citizenwatch-global.com/ . Here you will find a variety of information such as electronic setting guides, answers to frequently asked questions, Eco-Drive recharging information and more.
Safety precautions — IMPORTANT This manual contains instructions that should be strictly followed at all times not only for optimal use, but to prevent any injuries to yourself, other persons or property.
Before using this watch About altitude measurement This watch does not function as a specialized altitude-measuring equipment certified by any authority or regulating standards. Use the indicated altitude only as a reference. WARNING Do not use the altitude measurement function of this watch in the following cases: • When actions or situation judgments involving risks are required. • When rapid changes in altitude occur such as when skydiving or hanggliding.
Before using this watch About the compass This watch does not function as a specialized compass instrument certified by any authority or regulating standards. Use the indicated compass direction only as a reference. WARNING CAUTION Do not use the compass function of this watch in the following cases: • When precise directional indication is required for navigational or other activities with serious risks.
Before using this watch After unpacking, the following must be done before using the watch: • Checking the power reserve see page 16 For optimal performance, ensure your watch is fully charged prior to use. Refer to pages 12 to 15 for charging procedures and times. This watch has a rechargeable cell which is charged by exposing the dial to light. Expose the dial to direct sunlight regularly to charge the watch. For details of charging, see pages 12 to 17.
Before using this watch Band adjustment We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury. Consult your nearest authorized Citizen service center. Protective stickers Be sure to remove any protective stickers that may be on your watch (case back, band, clasp, etc.).
Before using this watch Screw down crown/button Unlock the crown/button prior to operate your watch. Unlock Lock Screw down crown Rotate the crown counterclockwise until it releases from the case. Push the crown in to the case. With gentle pressure towards the case, rotate the crown clockwise to secure it to the case. Be sure to tighten firmly. Screw down push button Rotate the locking screw counterclockwise, and loosen until it stops. Rotate the locking screw clockwise, and tighten firmly.
CONTENTS Features +- Altitude measurement Indicates altitude by measuring atmospheric pressure with a sensor Compass function Indicates compass direction by measuring geomagnetism with the built-in magnetism sensor Eco-Drive (solar powered) Never needs a new battery. This watch is fueled by light. • “Eco-Drive” is an original technology of Citizen. 8 Parts identification (when measuring altitude)............ 10 Parts identification (when using the compass).............. 11 Charging your watch........
Setting the time................... 26 Adjusting the calendar......... 27 Calibrating altitude indication.............. 28 Calibrating compass indication............. 32 Checking and correcting the reference position............... 44 Using the scale..................... 48 Troubleshooting................... 50 Eco-Drive (solar powered) watch handling precautions.......... 58 Water resistance................... 62 Precautionary items and usage limitations................ 65 Information.....................
Parts identification (when measuring altitude) 100 m hand Scale 0m 0) 0) (-1 40 (-6 (- 60 0) ) (+ 5 0 50 (-50) ) 60 ) 80 ( 80 (-20 0) (-4 60 W (-30) (- 3 0 ) 70 70 - 0) 0 -2 0) ) ) Date indicator -7 0 E 800 30 ( (- 4 S (- 5 0 ) 10 600 + 30 (-70 0 Minute hand E 1 (-80) 2 W 400 3 (- 8 0 ) Second hand 200 20 ) 0m Scale rotation crown 9 ) 20 1 000 m hand (- 90 6 7 8 9 x 1000 m 10 5 4 10 10 (- ) Atmospheric pressure sensor Lower left butto
Parts identification (when using the compass) Compass hand Scale 0m 0) (-1 (-6 (- 60 0) ) (+ 5 0 50 (-50) ) 60 ) 80 ( 80 (-20 0) (-4 60 W (-30) (- 3 0 ) 70 - 0) 40 -2 0) ) ) Date indicator -7 0 E 800 30 ( 70 600 + 30 (-70 0 Minute hand E 1 (-80) 3 2 W 400 (- 8 0 ) (- 4 S (- 5 0 ) Second hand 200 20 ) 0m Scale rotation crown 9 ) 20 4 (- 90 6 7 8 9 x 1000 m 10 5 10 10 (- ) Power reserve indication hand Lower left button ( (-1 90 0 Hour ha
Charging your watch This watch has a rechargeable cell which is charged by exposing the dial to light, such as direct sunlight or fluorescent lamps (refer to pages 14 and 15 for charging guidelines). After taking off the watch, put it in a location where the dial is exposed to bright light, such as by a window. For optimal performance, be sure to: • Expose it to direct sunlight for 5 or 6 hours at least once a month. • Avoid leaving the watch in dark places for long periods of time.
Charging your watch 9 0 (-1 m 0) 10 (- 9 0 -7 - (- 3 0 ) 70 30 ( E E W (-80) 400 4 When the power reserve becomes low, the second hand moves once every two seconds. This is the insufficient charge + warning function. Be sure to fully charge your watch as outlined on pages 14 and 15. • When the watch is sufficiently charged, the second hand will move normally.
Charging your watch Charging time by environment Below are the approximate times required for charging when exposing the watch dial to light continuously. Please use this table as a reference only. Environment 14 Charging time (approx.) Illuminance To start working To become fully To work for one normally (lx) when the charged when the cell day cell is discharged is discharged Outdoors (sunny) 100 000 3 minutes 2 hours 35 hours Outdoors (cloudy) 10 000 12 minutes 3.
Charging your watch • To charge your watch, it is recommended to expose the dial to direct sunlight. Optimal charging is achieved by exposing the dial to direct sunlight outdoors for a short time each day. • After charged fully, the watch runs without additional charging for about 11 months.
Checking the current power reserve Power reserve indication (Power reserve indication hand on the left sub dial) 5 x 1000 m 4 3 2 - Power reserve level scale 6 7 8 9 1 0 + Power reserve indication hand • Power reserve is not indicated during altitude measurement (page 18) or altitude calibration (page 28).
Checking the current power reserve The power reserve level Level 3 2 1 0 Level indication Approximate duration 280 - 340 days Power reserve is sufficient for Meaning of the all features and level indication functions. 180 - 280 days 4 - 180 days Power reserve is sufficient for all operations at this level. Power reserve is getting low. OK for normal use 4 days or less Power reserve is not sufficient for normal operation. Charge immediately.
Measuring altitude • Use the measuring result only as a reference. • Use a commercial specialized device when highly accurate measurement is required. • Confirm the power reserve is in level “2” or higher before measurement. 1 Press and release the lower left button . Altitude is indicated. • It may take a moment to indicate altitude. Wait until movement of the hands stop.
Measuring altitude About altitude measurement This watch continuously measures altitude during the first 5 minutes of measurement. After that, measurement occurs every 3 minutes for up to 12 hours. How to read altitude indication Altitude is indicated by the 3 hands, the 1 000 m, 100 m and 2.5 m hands.
Measuring altitude How to read altitude indication (continued) 100 m hand indication 0) ) (+ 5 0 ) S (- 5 0 ) ) -2 80 ( 80 (-20 W (-30) 2 70 70 (- 3 0 ) x1 3 1 ) ) -2 80 ( 80 (-20 W (-30) (- 3 0 ) ) 0) 70 70 0) (-4 60 (- 4 -2 6 7 5 4 0 60 80 ( 0) 50 (-50) 80 (-20 0) 60 - - (-6 (- 0 40 0 4 40 0 (-6 (- 60 0) ) (+ 5 0 50 (-50) ) S (- 5 0 ) 60 0) (-4 60 W ( 9 0) ) ) -7 4 (-30) E 800 30 ( (- 3 0 ) 600 + 30 (-70 70 E 0 W 400
Measuring altitude 2.5 m hand indication Indication range: ‒97.5 m to 97.5 m The 100 m hand points minus indication when measured altitude is lower than 0 m. In this case, use figures in parentheses to read the 2.5 m hand. On the example in the right, the last 2 digits of measured altitude are indicated as “40 m” or “‒60 m”. m m m 10 10 •1 0Measured altitude0is indicated 0m 0 m in 5.0-m 0m 0 9 9 10 10 10 0 0 height when it is more than 6 000 m.
Measuring altitude How to read altitude indication (continued) Indication examples 0) ) (+ 5 0 ) 60 (- S (- 5 0 ) 4 40 0 (-6 (- 60 0) ) ) -2 80 ( W (-30) (- 3 0 ) 70 0) ) -2 80 ( 80 (-20 4 80 (-20 - 70 0) (-4 60 W 0) 50 (-50) (+ 5 0 50 (-50) ) 60 0) (-4 60 (-30) - (-6 60 ) 0) 0 ) -7 (- (- 3 0 ) E 800 30 ( 70 600 + 30 (-70 70 E ) W 400 (-80) 0 0) 0 200 (- 8 0 ) ) -7 1 9 ) 20 0m 3 2 (- 90 20 4 10 10 (- ) 30 ( 30 (-70 E
Measuring altitude When the measured altitude is out of the indication range Indication range: ‒300 m to 10 000 m When the measured altitude cannot be indicated, the 1 000 m hand points to “ o’clock position) and stops.
Using the compass • Use the compass direction result only as a reference. • Use a commercial specialized device when highly accurate measurement is required. • Confirm the power reserve is in level “2” or higher before measurement. 1 Press and release the upper left button while keeping the watch’s dial level. +- Compass function starts. • It may take a moment to indicate the compass direction. Wait until movement of the hands stop.
Using the compass 2 After finishing measurement, press and release the upper left button to turn off the function. • Compass indication ends in 30 seconds without pressing the button. How to read the compass indication The compass hand points north.
Setting the time 1 Pull the crown out to position as the second hand points 0 second. 2 Rotate the crown to set the time. • Take care the time set is AM or PM. • Date indicator starts to change to the next as the setting passes 10PM. Rotating the crown counterclockwise does not turn back date indicator. 3 Push the crown in to position in accordance with a reliable time source to finish the procedure.
Adjusting the calendar You must correct the date on the first day of March, May, July, October and December. • Do not set the date during the period below as the date indicator is changing. Otherwise the date indicator may change improperly. Period of time: From 10PM to 0AM (12:00AM) 1 Pull the crown out to position . 2 Rotate the crown clockwise to set the date. 3 Push the crown in to position to finish the procedure.
Calibrating altitude indication About altitude indication This watch measures atmospheric pressure with a specialized sensor and calculates altitude by applying the standard atmosphere model (set by ICAO, International Civil Aviation Organization) used for altitude measurement of civil aircrafts. The standard atmosphere model sets a theoretical atmosphere and how pressure, temperature, density and viscosity vary accompanying with change of altitude in it.
Calibrating altitude indication Calibrating altitude indication You can correct altitude measured by the watch when you know the actual height from map, sign or other sources for future measurement. 1 Press and release the lower left button . The measured altitude is indicated. • It may take a moment to indicate altitude. Wait until movement of the hands stop. 2 Press and hold the lower left button seconds or more.
Calibrating altitude indication 3 Press and release the lower left button - to Choose this when the actual altitude is higher than the measured one. - choose + or –. Choose this when the actual altitude is lower than the measured one. + + • Each time you press and release the button, choice of “+” and “‒” changes alternately. • Repeat steps 3 and 4 to control the altitude value after calibration.
Calibrating altitude indication 4 Press and release the upper left button the actual altitude. to correct the indication to Move the 100 m and 2.5 m hands to indicate an approximate value of the altitude. • Indication keeps changing while you are pressing and holding the button. and lower left button at the same • Press and release the upper left button time to reset the calibration value. 5 Press and hold the lower left button for 3 seconds or more.
Calibrating compass indication About compass indication This watch measures earth magnetism directly with the built-in magnetic sensor for compass indication. Earth magnetism measurement is apt to be easily affected by environmental conditions near a magnet or thing emitting strong electromagnetic waves. In addition, generally, the north which a compass points to (magnetic north) is different from that on a map (true north).
Calibrating compass indication About 2 point correction 2 point correction adjust the watch’s status according to the surrounding environment. Use it when temperature drastically changed or the watch itself may be magnetized. 2 point correction is more effective if you do it before using the compass.
Calibrating compass indication Executing 2 point correction When executing 2 point correction, you must turn the watch just 180º while keeping it level. Take enough care of surrounding conditions before starting correction. Confirm you are not near an item with strong magnetism (electric equipment, magnets, etc.) before starting correction. 1 Press and release the upper left button . Compass function starts. • It may take a moment to indicate compass direction. Wait until movement of the hands stop.
Calibrating compass indication m 0m 0) 1 0 2 Press and9 0hold the upper10left button 90 (-1 0) (-1 (- 0 (-9 9 for 3 seconds or more. ) The compass hand points the 3 o’clock position. ) 80 ( 80 (-20 W - (-30) (- 3 0 ) 30 ( 70 E 30 (-70 70 E 600 + 0 (-80) 1 (- 8 0 ) 2 W 400 3 20 200 x 1000 m 4 20 -2 0) 0) 0m 6 7 8 9 5 800 ) 0) m 40 (- ) 10 -7 3 Press and 0release the 1 0 left button 0 lower m .
Calibrating compass indication 4 Turn the watch by 180º.
Calibrating compass indication 5 Press and release the lower left button . The second surrounding environment data is stored and the compass hand points the 12 o’clock position. 2 point correction completes and compass function starts. • If the compass hand returns to the 3 o’clock position, try again from step 3. for 3 seconds or more to cancel • Press and hold the upper left button the correction. When canceled, no correction is executed and the previous correction result remains effective.
Calibrating compass indication About declination correction Due to physical characteristics of the Earth as an astronomical body, the magnetic north and true north as indicated on a map are different. The difference is called “declination”. Declination varies by location.
Calibrating compass indication Declination correction is a correction method to adjust the compass of the watch to indicate true north as indicated on a map by setting the declination value of the location where you wants to find compass direction on the watch previously. On this watch, declination of 0° to 59° east and west can be set by 1°. You can use the results of geomagnetism survey published by governmental or other organizations.
Calibrating compass indication Executing declination correction 1 Press and release the upper left button . Compass function starts. • It may take a moment to indicate compass direction. Wait until movement of the hands stop. 2 Press and hold the upper left button seconds or more. for 3 The compass hand points the 3 o’clock position. 3 Press and hold the lower left button seconds or more. for 3 The compass hand points the direction of declination (east or west) and the 2.
80 ( (- 9 0m 0) 1 0W (4001 Calibrating 9 0 (- ) 90 E ) compass indication 60 ) 0 0) ) (+ 5 0 60 50 ) (- 4 (- 3 0 ) (-6 (- 70 0 W 40 E Choose this when the direction of declination is east (E). 30 ( 800 4 600 30 S (- 5 0 ) 3 00((- 8 0) E 2 - 7 0) 302(-700 200 800 W 400 ) ) E 800 Choose this when the direction of declination is west (W).
Calibrating compass indication 6 Press and hold the lower left button seconds or more. for 3 Declination correction completes and compass function starts. • It may take a moment to indicate compass direction. Wait until movement of the hands stop. 7 Press and release the upper left button finish the procedure.
Calibrating compass indication About declination correction and 2 point correction 2 point correction is a method to detect earth magnetism surely and declination correction is a method to correct the declination of earth magnetism itself. Appropriate implementation of the both methods makes the compass function of the watch more accurate.
Checking and correcting the reference position Check whether the reference position is correct if altitude or compass indication is incorrect even after calibration.
Checking and correcting the reference position Checking the reference position Check whether the reference positions of the 1 000 m hand, 100 m hand (compass hand) and 2.5 m hand are correct. 1 Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”. 2 Pull the crown out to position . The hands move to their reference position. 3 Check the reference positions.
Checking and correcting the reference position Correcting the reference position Correct the hands and indication to make them show their correct reference positions. • Adjust the time after finishing correction of the reference position. 1 Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”. 2 Pull the crown out to position . The hands move to their reference position.
Checking and correcting the reference position 4 Press and release the upper left button . 5 Press and release the lower left button to change the hand to be Each time you press the button, the hand moves by 1 step. • The hand moves continuously while you are pressing and holding the button. corrected. Each time you press and release the lower left button , the target hand moves slightly to indicate it is adjustable. • The target hand changes in the following order: 100 m hand (compass hand) → 2.
Using the scale • Adjust the time after finishing correction of the reference position. Measuring altitude difference You can see altitude difference by setting the mark on the scale to the current position of the 2.5 m hand. To move the scale, turn the scale rotation crown. Scale rotation crown 0 (- 30 ) ) (-10 W 60 ( - -4 0) 7 + 8 W S (+ 50 (-70) + ) The scale shows altitude difference of –97.5 m to 97.5 m range by 2.5 m.
Using the scale Seeing the bearings You can see the other bearings than the north by setting the mark on the scale to the current position of the compass hand. To move the scale, turn the scale rotation crown. Scale rotation crown North (N) mark on the scale E - W + W • Set the E S mark on the scale to the 12 o’clock position after using the scale.
Troubleshooting If you have a problem with your watch, check the items below. Symptom Remedies Page Cannot measure compass direction ” and stays still.
Troubleshooting Symptom Remedies Page Cannot perform altitude measurement or compass function ” and stay still. 0) -7 50 (-50) (+ 5 0 ) S (- 5 0 ) 60 80 ( 80 (-20) 0) (-4 60 (- 4 W ( - 3 0) - 0) ) -2 0) (-6 60 70(-30 ) 0) (- 70 − 30 ( E 800 30 (-70) ) E 0 (-80) (- 8 0 ) 20 20 600 + ) 0 0 1 9 ) W 400 3 2 (- 90 200 x 1000 m 4 10 10 (- 0m 6 7 8 9 5 m 0m 0) (-1 40 (-1 90 0 0 9 A malfunction of the measurement system has occurred.
Troubleshooting Symptom Remedies Page Cannot perform 2 point correction ” and stays still.
Troubleshooting Symptom Remedies Page Movement of a hand seems strange Hands move in unexpected Stop altitude measurement or compass directions. function. Check and correct the reference position. Altitude indication is incorrect. Execute altitude calibration. Compass indication is incorrect. Execute compass calibration. Check and correct the reference position.
Troubleshooting Symptom Remedies Page Movement of a hand seems strange (continued) The second hand moves once every two seconds. The second hand does not move. Stop altitude measurement. Stop altitude calibration. Stop compass calibration. 54 . It is required to charge in direct sunlight for about 1 hour. Push the crown in to position Cannot check the power reserve. 12 Charge the watch. Push the crown in to position .
Troubleshooting Symptom Remedies Page Calendar is incorrect Date indicator is incorrect. Adjust the calendar.
Troubleshooting You can reset the watch to the initial status (All Reset). When you reset the watch, the following values return to the initial. • Calibration value of altitude measurement • Correction value of 2 point correction • Correction value of declination correction Be sure to perform the following operations after All Reset. 1. Correct the reference positions. After All Reset, the watch is in the reference position adjustment mode. Refer to step 3 and after on page 46. 2.
Troubleshooting 1 Stop altitude measurement or compass function and check the power reserve indication. • Charge the watch if the power reserve is lower than “2”. 2 Pull the crown out to position . The 1 000 m hand, 100 m hand (compass hand) and 2.5 m hand move to their current reference positions. Do not execute any operation until all the hands stop. 3 Press and hold the upper left button left button more.
Eco-Drive (solar powered) watch handling precautions • For optimal performance, your watch should remain fully charged. • Long sleeves may inhibit light transmission to your watch. This may result in your watch loosing charge. In these cases supplemental charging may be necessary. • When you take off the watch, place it in a bright location to ensure optimal performance.
Eco-Drive (solar-powered) watch handling precautions CAUTION Recharging Precautions • Do not charge the watch at a high temperature (about 140 °F (60 °C) or higher) as doing so may cause the movement to malfunction. Examples: • Charging the watch too close to a light source which generates a large amount of heat such as an incandescent lamp or halogen lamp.
Eco-Drive (solar-powered) watch handling precautions • This watch utilizes a special rechargeable cell that does not require periodical replacement. However power consumption may increase after using the watch for a number of years due to wear of internal components and deterioration of oils. This may cause stored power to be depleted at a faster rate.
Eco-Drive (solar-powered) watch handling precautions WARNING Use Only the Specified Battery • Never use a battery other than the rechargeable cell specified for use in this watch. Although the watch structure is designed so that it will not operate when another type of battery is installed, if a conventional watch battery or other type of battery is installed in the watch and the watch is recharged, there is the risk of overcharging which may cause the battery to rupture.
Water resistance WARNING Water Resistance • Refer to the watch dial and/or the case back for the indication of the water resistance of your watch. The following chart provides examples of use for reference to ensure that your watch is used properly. (The unit “1 bar” is roughly equal to 1 atmosphere.) • WATER RESIST(ANT) ×× bar may also be indicated as W. R. ×× bar.
Water resistance Water-related use Minor exposure to water (washing face, rain, etc.
Water resistance • Non-water resistant models are not designed to come into contact with any moisture. Take care not to expose a watch with this rating to any type of moisture. • Water resistance for daily use (to 3 atmospheres) means the watch is water resistant for occasional accidental splashing. • Upgraded water-resistance for daily use (to 5 atmospheres) means that the watch may be worn while swimming, but is not to worn while skin diving.
Precautionary items and usage limitations CAUTION To Avoid Injury • Be particularly careful when wearing your watch while holding a small child, to avoid injury. • Be particularly careful when engaged in strenuous exercise or work, to avoid injury to yourself and others. • Do not wear your watch while in a sauna or other location where your watch may become excessively hot, since there is the risk of burns.
Precautionary items and usage limitations CAUTION Precautions • Always use the watch with the crown pushed in (normal position). If the crown is of the screw lock-type, make sure it is securely locked. • Do not operate the crown or any push buttons when the watch is wet. Water may enter the watch causing damage to vital components. • If water enters the watch or the watch fogs up and does not clear up even after a long time, consult your dealer or customer support center for inspection and/or repair.
Precautionary items and usage limitations CAUTION When Wearing Your Watch • Leather bands and rubber (urethane) bands will deteriorate over time due to perspiration dirt. Because of the natural materials, leather band will be worn, deformed, and discolored over time. It is recommended to replace the band periodically. • The durability of a leather band may be affected when wet (fading, peeling of adhesive), owing to the properties of the material. Moreover, wet leather may cause a rash.
Precautionary items and usage limitations CAUTION When Wearing Your Watch (continued) • Please request adjustment or repair of the band in the following cases: • You notice an abnormality with the band due to corrosion. • The pin of the band is protruding. • We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury.
Precautionary items and usage limitations • Avoid dropping the watch or subjecting it to other strong impact. It may cause malfunctions and/or performance deterioration as well as damage to the case and bracelet. • The integrated circuits (IC) used in quartz watches are sensitive to static electricity. Please note the watch may operate erratically or not at all if exposed to intense static electricity.
Precautionary items and usage limitations CAUTION Always Keep Your Watch Clean • Rotate the crown while it is pressed in fully and press the buttons periodically so they do not become stuck due to accumulations of foreign matter. • The case and band of the watch come into direct contact with the skin. Corrosion of the metal or accumulated foreign matter may result in black residue coming from the bracelet when exposed to moisture or perspiration. Be sure to keep your watch clean at all times.
Precautionary items and usage limitations Caring for Your Watch • Wipe any dirt or moisture such as perspiration from the case and crystal with a soft cloth. • For metallic, plastic or synthetic rubber (polyurethane) band, clean it with soap and a soft toothbrush. Be sure to thoroughly rinse the band after cleaning to remove any soap residue. • For a leather band, wipe off dirt using a dry cloth.
Information Basic information of the altimeter Measurable range –300 to 10 000 m Unit for indication Accuracy assurance –4 °F (–20 °C) to 104 °F (40 °C) temperature Lower than 6 000 m: 2.5 m Assured accuracy 6 000 m or higher: 5.0 m ± ([Altitude difference from the point altitude calibration was executed] x 2% +15) m • The accuracy is guaranteed when temperature is constant after altitude calibration.
Information Assured accuracy in various altitude and error range The table shows assured accuracy in various altitude and error range when altitude is calibrated at 0 m height for reference.
Information Basic information of the compass Accuracy assurance temperature –4 °F (–20 °C) to 104 °F (40 °C) Assured accuracy ±10° • The accuracy is guaranteed when temperature is constant after 2 point correction. About the regions where the compass function may be hard to use In the patterned regions on the next page, the compass accuracy of the watch may not be maintained due to the characteristics of the geomagnetic field. When using the compass function of the watch, check the region.
Information Patterned regions 75
Specifications 76 Model J280 Timekeeping accuracy Average monthly accuracy: ±15 seconds when worn at normal operation temperatures between 41 °F (+5 °C) and 95 °F (+35 °C) Operating temperature range ‒4 °F (‒20 °C) to 140 °F (+60 °C) Type Analog solar-powered watch Display functions • Time: Hours, minutes, seconds • Calendar: Date • Power reserve: 4 levels Maximum run time from full charge • After charged fully, the watch runs without additional charging: Approximately 11 months • Power rese
Specifications Additional functions • • • • • • • • • Solar power function Power reserve indication (in four levels) Overcharging prevention function Insufficient charge warning function (two-second interval movement) Altitude indication function Altitude calibration function Compass indication function Compass calibration function Reference position check and adjustment function for altitude/compass indication hands Specifications and contents of this booklet are subject to change without prior notice.
Model No.BN4＊ Cal.
