Seiko CAL. 5Y75 - Manual (Page 11)

■ PRECAUTION REGARDING CASE BACK PROTECTIVE FILM
If your watch has a protective film and/or a sticker on the case back,
be sure to peel them off before using your watch. Otherwise,
perspiration getting in under them may rust the case back.
■ PERIODIC CHECK
It is recommended that the watch be checked once every 2 to 3 years.
Have your watch checked by an AUTHORIZED SEIKO DEALER or SER-
VICE CENTER to ensure that the case, crown, gasket and crystal seal
remain intact.
SPECIFICATIONS
1. Frequency of crystal oscillator ............ 32,768 Hz (Hz = Hertz … Cycles per second)
2. Loss/gain (monthly rate) ...................... Less than 15 seconds at normal temperature
range (5 °C ~ 35°C) (41°F ~ 95°F)
3. Operational temperature range .......... –5 °C ~ +50°C (23°F ~ 122°F)
4. Driving system ...................................... Step motor
5. Additional function ............................... Second setting device, date setting device,
quick-start function, energy depletion
forewarning function and overcharge
prevention function.
6. Duration of life
Full charge ....................................... 3 days on average.
2-second interval operation ........... 15 hours on average.
7. Capacitor ............................................... Button type capacitor, 1 piece.
8. IC (Integrated Circuit) ........................... C-MOS-LSI, 1 piece.
* The specifications are subject to change without prior notice, for product improve-
ment.