Seiko 7T82 User Manual (English)

Questions and Answers:

A
Amber GonzalezJul 30, 2025
Why does my Seiko 7T82 Watch temporarily gain or lose time?
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  thorntontammyJul 31, 2025
  Your Seiko Watch may temporarily gain or lose time if it has been exposed to extremely high or low temperatures. If this occurs, return the watch to a normal temperature and reset the time. Also, the watch may gain or lose time if it has been left close to an object with a strong magnetic field. To correct this, move the watch away from the magnetic source and reset the time. If resetting the time doesn't restore normal accuracy, contact the retailer.
D
David RossAug 6, 2025
What to do if my Seiko 7T82 stops operating?
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  Duane KelleyAug 6, 2025
  If your Seiko Watch stops operating, the battery has likely run down. Have the battery replaced with a new one immediately by the retailer from whom the watch was purchased.
M
melissa13Aug 12, 2025
What to do if the small second hand on my Seiko Watch moves at two-second intervals?
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  Timothy FischerAug 12, 2025
  If the small second hand on your Seiko Watch moves at two-second intervals, the battery is likely nearing its end. Have the battery replaced with a new one immediately by the retailer from whom the watch was purchased.
J
Jose FisherAug 17, 2025
Why does the date change at 12 o’clock noon on my Seiko 7T82 Watch?
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  edwardkeithAug 18, 2025
  If the date on your Seiko Watch changes at 12 o’clock noon, the AM/PM setting is not properly set. To correct this, advance the hour hands for 12 hours to correctly set the time and date.
J
Jennifer ParkAug 25, 2025
What to do if the STOPWATCH hands do not return to the “0” position when the stopwatch is reset on my Seiko 7T82 Watch?
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  Jared WilliamsAug 25, 2025
  If the STOPWATCH hands on your Seiko Watch do not return to the “0” position when the stopwatch is reset, it may be because the watch has been affected by magnetism or exposed to strong shocks or vibrations. Reset the stopwatch hands to the “0” position, following the procedure in "TIME AND CALENDAR SETTING AND STOPWATCH HAND POSITION ADJUSTMENT." If moisture has entered the watch because the gasket has deteriorated, contact the retailer from whom the watch was purchased.

Seiko 7T82 Specifications

Operating Environment

operational temperature range	–10 ºC ~ +60 ºC
loss/gain (monthly rate)	± 15 seconds at normal temperature range (5 ºC ~ 35 ºC)
frequency of crystal oscillator	32, 768 Hz

Power

battery type	SEIKO SR927W, 1 piece
battery life	Approximately 3 years
driving system	Step motor, 4 pieces

Display

time/calendar display	Hour, minute and small second hands
date display	Displayed in numerals
stopwatch display	1/100-second hand (0.1 second/ 360 degrees), 1/10-second hand (1 second/ 360 degrees), second hand (60 seconds/ 360 degrees), minute hand (40 minutes/ 240 degrees)

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