Specifications - Seiko 7T12 Instructions Manual

SPECIFICATIONS

1 Frequency of crystal oscillator .................. 32,768 Hz (Hz = Hertz ... Cycles per second)
2 Loss/gain (monthly rate) ........................... ±15 seconds at normal temperature range (between 5° C
3 Operational temperature range ................. Between –10° C and +60° C
4 Driving system ........................................... Step motor, 3 pieces
5 Display system
Time/calendar........................................ 24-hour, hour, minute and small second hands
Stopwatch ............................................ Stopwatch minute and 1/5-second hands
6 Battery ....................................................... SEIKO SR927SW, 1 piece
7 Battery life ................................................. Approximately 5 years
8 IC (Integrated Circuit) ................................ C-MOS-IC, 1 piece
* The specifications are subject to change without prior notice for product improvement.
20
and 35° C)
Date is displayed in numerals
If the stopwatch is used less than 2 hours per day