You are now the proud owner of a SEIKO Digital Quartz Watch Cal. W851. For best results, please read the instructions in this booklet carefully before using your SEIKO Digital Quartz Watch. Please keep this manual handy for ready reference. Enhorabuena por su adquisición de un reloj SEIKO digital de cuarzo Cal. W851. Para óptimo resultado, lea detenidamente las instrucciones de este folleto antes de usar el reloj. Guarde este manual para consulta posterior.
English ENGLISH CONTENTS Page MODE CHANGE ...................................................................................................... TIME/CALENDAR MODE ........................................................................................ ALARM MODE ........................................................................................................ STOPWATCH MODE ............................................................................................... TIMER MODE ...................
TIME/CALENDAR ALARM ● The alarm can be set to ring daily at five different times a day. STOPWATCH ● Measures up to 10 hours in 1/100 second increments. ● Memory recall function: Up to 199 lap and split times can be stored in memory. TIMER ● Preset timer function: 10 different lengths of time have been preset. ● Adjustable timer function: Can be set for up to 9 hours and 59 minutes in oneminute increments. WORLD TIME English CAL.
● Selection of a desired mode can be made by pressing the corresponding button in the MENU display. * When the desired mode is selected, an opening graphic display is shown before the selected mode appears. TIME/CALENDAR mode B ➡ ALARM mode ➡ English MODE CHANGE A ➡ STOPWATCH mode D ➡ TIMER mode E ➡ WORLD TIME mode C [MENU display] 4 ● To change from one mode to another, press button A to return to the MENU display, and then press the corresponding button to select the desired mode.
● CHANGING BETWEEN NORMAL AND ENLARGED DISPLAYS English ● If “CHR” is flashing in the MENU display, the measurement is in progress in the STOPWATCH mode. ✩ In all modes, you can choose between the normal display that shows all the data in four rows and the enlarged display that shows the main data in three rows. D With each press, the normal and enlarged displays alternately appear. Ex.
English TIME/CALENDAR MODE ● Once the time/calendar of your area is set in the TIME/CALENDAR mode, the times of the 38 cities covered in the WORLD TIME mode will be set automatically. ● You can choose between standard time and daylight saving time. A Press in MENU display to show TIME/CALENDAR mode.
B Press and hold for 2 to 3 seconds to show TIME/CALENDAR SETTING display. D Press repeatedly to select the digits (flashing) to be adjusted. Seconds ▲ ▲ Standard time/ daylight saving time ▲ ▲ City Minutes ▲ Hour Month ▲ Year ▲ 12-/24-hour indication ▲ ▲ ▼ ▼ English TIME/CALENDAR SETTING Date ▼ C Press to set the flashing digits. (Increasing order) or E Press to set the flashing digits. (Decreasing order) ▼ B Press to return to TIME/CALENDAR mode.
English ● SHOWING THE SELECTED CITY A Press to show the city selected for TIME/CALENDAR mode. * The name of the selected city is displayed in place of the day, scrolling from right to left, and then the day is displayed again. ● TURNING ON/OFF OF THE HOURLY TIME SIGNAL AND BUTTON OPERATION CONFIRMATION SOUND C With each press in TIME/CALENDAR mode, C the hourly time signal and button operation confirmation sound are alternately turned on and off.
English * The name of the selected city appears in place of the day, and then the demonstration display will start, showing the display of each mode repeatedly. * To stop the demonstration, press any of the buttons. ● ADJUSTING THE CONTRAST ON THE DISPLAY ✩ The contrast on the liquid crystal display can be adjusted in 16 steps from level “0” to “15”. B C C ▼ C or E Contrast level E Press and hold for 5 to 6 seconds in TIME/ CALENDAR mode to show the CONTRAST ADJUSTMENT display.
English ALARM MODE ● The alarm can be set to ring daily at five different times a day. ● The alarms can be engaged and disengaged independently of one another. B Press in MENU display to show ALARM mode. B C Current time D Set alarm time “ON”/“OFF” mark A Alarm mark E Alarm channel ALARM TIME SETTING E 10 ▼ Press to select the desired alarm channel (Ch.-1 – Ch.-5).
Press and hold for 2 to 3 seconds to show ALARM SETTING display. ▼ C Press to select the digits (flashing) to be adjusted. Hour ▲ D ▼ Minutes English B ▼ ▲ Press to set the flashing digits. (Increasing order) or E Press to set the flashing digits. (Decreasing order) ▼ B Press to return to ALARM mode. * The alarm and “ON” marks are displayed and the alarm is automatically engaged.
English STOPWATCH MODE ● The stopwatch measures up to 10 hours in 1/100 second increments. C Press in MENU display to show STOPWATCH mode.
START STOP ○ ○ ○ ○ RESTART C ▼ C ▼ C ▼ ▼ C STOP E RESET English Accumulated elapsed time measurement * Restart and stop of the stopwatch can be repeated by pressing button C. START LAP/SPLIT 1 ○ LAP/SPLIT 2 ○ ○ ○ C ▼ E ▼ E ▼ C ▼ Lap time and split time measurement STOP E RESET * Measurement of lap time and split time can be repeated by pressing button E. * The lap time and split time measured remain displayed for 10 seconds together with the flashing lap number.
English ● MEMORY RECALL FUNCTION ✩ The first 199 lap and split times are automatically stored in memory. ✩ The stored data can be recalled either during or after the measurement. Recall mark B Press to activate the memory recall function. ▼ B C C or E With each press, the stored data are recalled from the oldest to the newest. ▼ With each press, the stored data are recalled from the newest to the oldest. B Press to return to STOPWATCH mode.
TIMER MODE D English ● Two types of timers are available: 10-channel preset timer and adjustable timer. ● The adjustable timer can be set for up to 9 hours and 59 minutes in one minute increments. Press in MENU display to show TIMER mode. B C Current time D Set time A E Number of times the countdown is repeated PRESET TIMER SETTING E Press repeatedly to select the desired preset time.
5 minutes ▲ English 4 minutes ▲ 3 minutes ▲ 2 minutes ▲ ▲ 1 minute ▲ 10 minutes 30 minutes ▲ 45 minutes ▲ 1 hour ▲ ▲ ▲ Adjustable timer 15 minutes ADJUSTABLE TIMER SETTING E Press to select the adjustable timer (See above). ▼ B D ▼ C Press and hold for 2 to 3 seconds to show ADJUSTABLE TIMER SETTING display. Press to select the digits (flashing) to be adjusted. Press to set the flashing digits. (Increasing order) or E 16 ▼ Press to set the flashing digits.
Press to return to TIMER mode. English B ○ ○ ○ ○ C STOP ▼ C RESTART ▼ C STOP ▼ C START ▼ TIMER OPERATION E RESET * Restart and stop of the timer can be repeated by pressing button C. * When the set time is up, a warning sound beeps for 5 seconds. To stop it manually, press any of the buttons.
English WORLD TIME MODE ● The time of 38 cities in different time zones throughout the world can be displayed together with their respective country codes for overseas telephone calls. E Press in MENU display to show WORLD TIME mode. B C Country code D Current time of selected city A E City mark C or E Press to select the desired city. * The name of the selected city scrolls from right to left.
● CHANGEOVER BETWEEN STANDARD TIME AND DAYLIGHT SAVING TIME If daylight saving time is in effect in the selected city, press to show it. * With each press of button B, the standard time and daylight saving time of the selected city are alternately shown. English B ● TIME DIFFERENCES AND COUNTRY CODES GMT = Greenwich Mean Time GMT ± (hours) 0 0 +1 +1 +1 +2 +2 +2 +3 +3 +3 + 3.5 +4 + 4.
English 20 GMT ± (hours) +5 + 5.5 +6 + 6.5 +7 +8 +8 +9 + 9.5 + 10 + 11 + 12 - 10 -9 -8 -8 -7 -6 -5 -5 -4 -3 -3 -1 City mark KHI DEL DAC RGN BKK HKG BJS TYO ADL SYD NOU WLG HNL ANC YVR LAX DEN CHI NYC YMQ CCS BUE RIO PDL City name Karachi Delhi Dhaka Yangon Bangkok Hong Kong Beijing Tokyo Adelaide* Sydney* Nouméa Wellington* Honolulu Anchorage* Vancouver* Los Angeles* Denver* Chicago* New York* Montreal* Caracas Buenos Aires Rio de Janeiro* Azores Is.
ILLUMINATING LIGHT (Electroluminescent panel) F English ● Certain materials emit light when voltage passes through them. This phenomenon, known as “electroluminescence”, is used to illuminate the display. Press in any mode. * The display is illuminated for 3 seconds. F ● TURNING ON/OFF OF THE BUTTON OPERATION CONFIRMATION LIGHT “EL” mark F With each continuous press for 2 to 3 seconds, the button operation confirmation light is alternately turned on and off.
English 22 NOTES ON USING THE WATCH TIME/CALENDAR MODE [TIME/CALENDAR SETTING] ● The calendar automatically adjusts for odd and even months including February of leap years from the year 1998 up to the end of 2047. ● Once the year, month and date have been set, the day of the week is automatically set. ● The flashing digits except the seconds, the standard time/daylight saving time and the 12-/24-hour indication move quickly if button C or E is kept pressed.
ALARM MODE English [ALARM TIME SETTING] ● The flashing digits move quickly if button C or E is kept pressed. ● When the time function is displayed in the 24-hour indication, the alarm is also displayed in the 24-hour indication. ● When setting the hour digits in the 12-hour indication, check that AM/PM is properly set. ● If the watch is left untouched in the ALARM SETTING display with the digits flashing, it will automatically return to the ALARM mode in 2 to 3 minutes.
English memory recall function. TIMER MODE ● The timer counts down the set time repeatedly up to 10 times unless stopped. [ADJUSTABLE TIMER SETTING] ● The flashing digits move quickly if button C or E is kept pressed. ● If the watch is left untouched in the ADJUSTABLE TIMER SETTING display with the digits flashing, it will automatically return to the TIMER mode in 2 to 3 minutes.
BATTERY CHANGE Years The miniature battery which powers your watch should last approximately 2 years. However, because the battery is inserted at the factory to check the function and performance of the watch, its actual life once in your possession may be less than the specified period. When the battery expires, be sure to replace it as soon as possible to prevent any malfunction. For battery replacement, we recommend that you contact an AUTHORIZED SEIKO DEALER and request SEIKO CR2025 battery.
English * The display will become blank, and the MENU display will appear when the buttons are released. Then, press button A. B C A E * The display at right will appear. * Before using the watch, set the time/calendar and then the alarm. WARNING ● Do not remove the battery from the watch. ● If it is necessary to take out the battery, keep it out of the reach of children. If a child swallows it, consult a doctor immediately.
■ WATER RESISTANCE Condition of use Indication on case back Degree of water resistance* Accidental contact with water such as rain and splashes Swimming, Taking a bath yachting and and shallow diving taking a shower English TO PRESERVE THE QUALITY OF YOUR WATCH Scuba diving** and saturation diving No indication Non-water resistant No No No No WATER RESISTANT 3 bar Yes No No No WATER RESISTANT 5 BAR 5 bar Yes Yes No No WATER RESISTANT 10/15/20 BAR 10/15/20 bar Yes Yes Yes No 27
English ● Non-water resistant • If the watch becomes wet, have it checked by an AUTHORIZED SEIKO DEALER or SERVICE CENTER. ● Water resistant 5/10/15/20 bar • Do not operate the buttons when the watch is wet or in water. If used in sea water, rinse the 5 bar WR watch in fresh water and dry it completely.
■ CARE OF CASE AND BRACELET To prevent possible rusting of the case and bracelet, wipe them periodically with a soft dry cloth. Be careful not to drop your watch or hit it against hard surfaces. ■ MAGNETISM Your watch will not be affected by magnetism. N S ■ CHEMICALS Be careful not to expose the watch to solvents, mercury, cosmetic spray, detergents, adhesives or paints. Otherwise, the case, bracelet, etc. may become discolored, deteriorated or damaged.
English 30 ■ STATIC ELECTRICITY The IC (Integrated Circuit) used in your watch will be affected by static electricity which may disturb the display. Keep the watch away from close contact with objects such as TV screens which emit strong static electricity. ■ LIQUID CRYSTAL PANEL The normal life expectancy for a liquid crystal panel is approximately 5 years. After that it may decrease in contrast, 5 Years becoming difficult to read.
SPECIFICATIONS Frequency of crystal oscillator .................. 32,768 Hz (Hz = Hertz … Cycles per second) 2 Loss/gain (monthly rate) ............................ Less than 20 seconds at normal temperature range (5° C ~ 35° C) (41° F ~ 95° F) 3 Operational temperature range ................. –10° C ~ +50° C (14° F ~ 122° F) 4 Display system English 1 TIME/CALENDAR mode ......................
English TIMER mode ........................................ Hour, minutes, seconds and the number of times the countdown is repeated Current time and “A” (AM)/“P” (PM) mark in the 12-hour indication TIMER mode mark, set time, “FREE” for the adjustable timer, selected preset time, “RESET”, “STOP” and “RUN” (Alarm mark, hourly time signal mark, “EL” mark and daylight saving time mark) WORLD TIME mode ............................
