SEIKO - Instruction Manual - Features, Setting Time, Stopwatch, Troubleshooting, Specifications

Oct 23, 2026

Uploaded by Kurz

SEIKO watch instruction manual covering safe and proper use, watch features, and operation of the time and date setting. It explains crown types, how to set hours, minutes, AM/PM, and the rules for manual date adjustment, including restrictions around 9:00 P.M. to 3:00 A.M. The guide details stopwatch operation for 8T63 and 8T67 models, resetting and standard measurements, plus troubleshooting steps. It also includes battery warnings, battery life monitoring, and key specifications such as frequency, temperature range, display, and battery model.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages7

Reading Time18 min

AccessFree to download

FEATURES

SETTING THE TIME

SETTING THE DATE

STOPWATCH

How to reset the stopwatch

TROUBLESHOOTING

REMARKS ON THE BATTERY

SPECIFICATIONS

# SEIKO 取扱説明書INSTRUCTIONKSN8T6C SEIKO説明書8T63·8T67 2206 For proper and safe use of your watch,please read the instructions carefully in this booklet before using thewatch. Keep this manual handy for easy reference. ※ Length adjustment service for metalic bands is available at the retaler from whom the watch was purchased.If you cannot have your watchrepaired by the retailer from whom the watch was purchased because you received the watch as a git or you moved to a distant place,please contact a SEKO CUSTOMER SERVICE CENTER.The service may also be available on a chargeable basis at other retailers,however,some retailers may not undertake the service. ※ The preinstaled battery is used to check the function and performance of the watch.You wil be charged for battery replacement even if thebattery runs down within the guarantee period. ※ If your watch has a protective film for preventing scratches,make sure to peelit off before using the watch.f the watch is used with the filmon it,dirt,sweat,dust,or moisture may be attached to the fim and may cause rust. ## ■FEATURES This is a multi-display analogue watch featuring a stopwatch function. 8T63 ●Indicated by the hour,minute,second and 24-hour hands. ●The stopwatch can measure up to 60 minutes in 1/5 second increments.After 60 minutes,it willautomatically be stopped. 8T67 ●Indicated by the hour,mimute,second hands. ●The stopwatch can measure up 12 hours in 1/5 second increments.After 12hours,it will automatically bestopped. There are two types of crown,a normal crown and a screw-lock type crown.Please check the type of the crown of your watch. ※Be carefu not to screw the crown in by force as it may damage the slots of the crown. ## ■SETTING THE TIME □SETTING THE DATE ●Before setting the date,be sure to set the time. 1.Date setting should always be carried out after the time is correctly set. ※If your watch has a screw-lock type crown,the crown screws into the watch to prevent malfunction andincrease water resistance. CROWN Pull out to second click when the smallsecond hand is at the 12 o'clock position.Turn to set the hour and minute hands.Push back into normal position inaccordance with a time signal. 1.When the stopwatch is or has been measuring,if the crown is pulled out to the second click,thestopwatch will continue the current measurement 2.The 24-hour hand moves correspondingly with the hour hand.※8T67 does not have 24-hour hand. 3.The moment the date changes is midnight.When setting the hour hand,make sure to check thatAM/PM is correctly set by using the 24 hour hand as an AM/PM indicator. 4.When setting the minute hand,first advance it 4 to 5 minutes ahead of the desired time and then tum itback to the exact minute. CROWN Pull out to first click. Turn clockwise until the desired dateappears. Push back in to normal position. 2.Manual date adjustment is required on the first day after a month that has less than 31 days:February,April,June,September and November. 3.Do not set the date during any time between 9:00 P.M.and 3:00 A.M.Date setting during this timeperiod may couse failure of date change on the following day. ## ■STOPWATCH 8T63 ●The stopwatch can measure up to 60 minutes in 1/5-second increments. ●After measuring 60 minutes,the stopwatch willautomatically stop.8T67 ●The stopwatch can measure up 12 hours in 1/5 second increments. ●After measuring 12hours,the stopwatch will automatically stop. O Before using the stopwatch,be sure to check that the STOPWATCH hands are reset tothe “O”position. ## 〈How to reset the stopwatch〉 While the STOPWATCH hands are moving 1.Press Button A to stop the stopwatch. 2.Press Button ⑧to reset the stopwatch.While the STOPWATCH hands are stopped 1.Press Button ⑧to reset the stopwatch. ## Standard measurement ※Restart and stop of the stopwatch can be repeated by pressing buttton A. 1.You may feel that the buttons of the watch are harder to press compar

FAQs

What should be done before using the watch, especially with protective film?

Read the instructions carefully before use. If a protective film is present to prevent scratches, peel it off before using the watch to avoid dirt, sweat, dust, moisture, and possible rust.

How do you set the time and date with a screw-lock crown?

Set the time first, then carry out date setting after the time is correctly set. With a screw-lock crown, screw into the watch to prevent malfunction and increase water resistance, then pull out to the correct click position and set hours/minutes while confirming AM/PM using the 24-hour hand indicator.

How does the stopwatch work on 8T63 vs 8T67?

On 8T63, the stopwatch measures up to 60 minutes in 1/5-second increments and stops automatically after 60 minutes. On 8T67, it measures up to 12 hours in 1/5-second increments and stops automatically after 12 hours (8T67 does not have the 24-hour hand).

What are the key battery-related warnings and replacement guidance?

Do not remove the battery from the watch, and if removal is necessary keep it out of reach of children. If a child swallows it, consult a doctor immediately. Battery replacement is required if the watch stops, and the manual notes charges for battery replacement even within the guarantee period if the battery runs down.

Oct 23, 2026

Uploaded by Kurz