OPERATING INSTRUCTIONS www.grand-seiko.
Keep this manual handy for easy reference. English Thank you very much for choosing a Grand Seiko watch. For proper and safe use of your Grand Seiko watch, please read the instructions carefully in this booklet before using it. Length adjustment service for metallic bands is available at the retailer from whom the watch was purchased.
■HANDLING CAUTIONS (applicable to all models) To indicate the risks of serious consequences such as severe injuries unless the following safety regulations are strictly observed. Immediately stop wearing the watch in the following cases. ○ If the watch body or band becomes edged by corrosion etc. ○ If the pins protrude from the band. ※ Immediately consult the retailer from whom the watch was purchased or Grand Seiko international service network mentioned on CERTIFICATE OF GUARANTEE or our website.
■CAUTIONS ON WATER RESISTANCE Do not turn or pull out the crown when the watch is wet. WARNING ○ Never use the watch in saturation diving using helium gas. ○ While diving, never operate the watch in any other manner than described in this instruction manual. CAUTION Before using the diver's watch, you have to be properly trained in various types of diving and possess the requisite experience and skill to dive safely. When diving, strictly abide by the rules of diving. Water may get inside of the watch.
○ While diving ■NAMES OF THE PARTS English Make sure to observe the following instructions when you wear the watch while diving. 9F83 Minute hand Hour hand Wear the watch air diving within the water depth indicated on the dial. Do not operate the crown or buttons underwater. Crown Second hand Take care not to bump the watch against hard objects such as rocks. Bezel rotation may become slightly harder underwater, but this is not a malfunction.
■HOW TO USE 9F61, 8J55, 4J51 Crown Hour hand There are two types of crowns; a normal crown and a screw-lock crown. Crown Second hand Screw-lock type crown Unlock the crown before operating it. Unscrew After operating the crown, lock it.
Date adjustment at the end of the month It is necessary to adjust the date after February (which has 28 days, 29 days in a leap year) and a 30 day month. CAUTION You may not be able to set the date and/or day when the time on your watch is between midnight and 1:00 a.m. due to the mechanism of the watch. This is not a malfunction. Please refrain from setting the date and/or day during this time. How to set the time, date and day ① First, set the date and day. Pull out the crown to the first click.
Date adjustment at the end of the month It is necessary to adjust the date after February (which has 28 days, 29 days in a leap year) and a 30 day month. CAUTION You may not be able to set the date when the time on your watch is between midnight and 1:00 a.m. due to the mechanism of the watch. This is not a malfunction. Please refrain from setting the date and/or day during this time. How to set the time and date 【Ex.】 To adjust the date in the a.m.
HOW TO USE (FOR CAL. 4J52) How to set the time ① Pull out the crown when the second hand is at the 12 o'clock position as shown in the illustration. The second hand stops on the spot. CAUTION First click position If you set the date when the time on your watch is between 9:00 p.m. and 3:00 a.m., the date may not change correctly on the following day due to the mechanism of the watch. Please refrain from setting the date during this time. English HOW TO USE (FOR CAL.
Date adjustment at the end of the month 【Ex.】 To adjust the date in the a.m. period on the first day of a month following a 30-day month. The watch displays “31” instead of “1”. Pull out the crown to the first click. Turn the crown to set the date to “1”. First click position HOW TO USE (FOR CAL. 8J55) This watch features a time difference adjustment function. The hour hand can be easily adjusted in one-hour increments without stopping the minute and second hands.
■FUNCTIONS OF DIVER’S MODEL By using the rotating bezel, you can measure the elapsed time since the start of an event or an activity such as diving. This watch has a unidirectional rotating bezel. As the evaluation of the remaining air in your cylinder is based on the information of the elapsed time of the dive, the rotating bezels for a diver’s watch is designed to rotate only counterclockwise, so that the watch is prevented from displaying the elapsed time shorter than it actually is.
Battery replacement period indication How to identify the battery replacement period indicator 【Ex.】The battery replacement period is from July to September of 2017. Jan.-Mar. Jul.-Sep. Apr.-Jun. Oct.-Dec. ■TO PRESERVE THE QUALITY OF YOUR WATCH After-sale service Notes on guarantee and repair English As a guide to the battery replacement period, a battery life indicator is engraved on the case back of the watch as shown in the diagram below.
Guarantee Guarantee coverage The watch body (movement, case) and metallic band. Exceptions from guarantee In following cases, repair/adjustment services will be provided at cost even within the guarantee period or under guarantee coverage. ○ Exchange of leather, urethane, or fabric band. ○ Troubles or damage to the case, glass, or band, caused by accidents or improper usage. ○ Scratches or grime caused by use.
Band Metallic band ○ Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long time. ○ Lack of care may cause a yellowish or gold stain on the lower sleeve edge of shirts. ○ Wipe off moisture, sweat or soil with a soft cloth as soon as possible. ○ To clean the soil around the joint gaps of the band, wipe it out in water and then brush it off with a soft toothbrush (Protect the watch body from water splashes by wrapping it up in plastic wrap etc.).
Lumibrite Troubleshooting Lumibrite is a luminous paint that is completely harmless to human beings and the natural environment; containing no noxious materials such as radioactive substance. Lumibrite is a newly-developed luminous paint that absorbs light energy of the sunlight and lighting apparatus in a short time and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours.
■INTERCALARY SECOND (LEAP SECOND) Normally there are 86,400 seconds in a day. Due to a slight change in the earth's rotation, an extra second may be added to one day during the year. This is called the intercalary second. Every year the decision is made whether such an adjustment is needed. When the adjustment takes place, the standard time should be corrected by delaying the standard time one second.
