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■ CHEMICALS
Be careful not to expose the
watch to solvents (e.g., alcohol
and gasoline), mercury (i.e., from
a
b r o k e n
t h e r m o m e t e r ) ,
cosmetic spray, detergents, adhesives or
paints. Otherwise, the case, bracelet, etc.
may become discolored, deteriorated or
damaged.
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
3
Operational temperature range .............. –10°C ~ +60°C (14°F ~ 140°F)
4
Driving system ....................................... Step motor
5
Battery .................................................... SEIKO SR621SW, 1 piece (Cal. 2A27)
6
IC (Integrated Circuit) ............................. C-MOS-IC, 1 piece
* The specifications are subject to change without prior notice for product improvement.
10
■ 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.
range (5°C ~ 35°C) (41°F ~ 95°F)
SEIKO SR521SW, 1 piece (Cal. 4J27)
SEIKO SR43SW, 1 piece (Cal. 7C17)
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