Specifications

CAUTION

●Never short-circuit, heat or otherwise tamper with the battery, and never expose it to fire. The battery may burst, become very hot or catch fire.

●The battery is not rechargeable. Never attempt to recharge it, as this may cause battery leakage or damage to the battery.

1	Frequency of crystal oscillator	32,768 Hz (Hz = Hertz ... Cycles per second)
2	Loss/gain (monthly rate)	Less than 20 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, 3 pieces
5	Display system
	Time	Hour, minute, second and 24-hour hands
	Date	Displayed in numerals.
	Stopwatch	Minute and 1/5-second hands
		The stopwatch measures up to 30 minutes in 1/5 second increments.
6	Battery	SEIKO SR927SW, 1 piece
7	Battery life indicator
8	IC (Integrated Circuit)	C-MOS-LSI, 1 piece

10* The specifications are subject to change without prior notice for product improvement.

Seiko Y187 manual Specifications