Seiko 7A38 Movement Details

Seiko calibre 7A38 is an analogue quartz watch movement. Production started around 1984.
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Sub-brands:	Sports 100, SQ, Speedmaster
Battery:	SR936SW / 394 (Silver oxide) · Find on eBay
Accuracy:	±15 seconds/month
Day / date?	Day + date
GMT / world time?	No
Chronograph?	Yes
Alarm?	No
Hacking?	Yes
Rate:	32,768 Hz
Number of jewels:	15
Size / diameter:	29.0mm
Height:	4.6mm
Development division:	Suwa (Nagano Prefecture, Japan)
Notes:	Used in a Ferrari-branded watch, renamed as "cal. 531". Has a battery life indicator. The same as cal. 7A28 but with day and date display.
PDF guides:	Technical guide : 7A38A
Related movements:	7A28 7A34 7A36 7A48 7A54

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