Seiko 5Y66 Movement Details

Seiko caliber 5Y66 is an analog quartz watch movement.
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Battery:SR920SW / 371 (Silver oxide)
Accuracy:±20 seconds/month
Day / date?Day + date
GMT / world time?No
Rate:32,768 Hz
Number of jewels:0
Size / diameter:23.3mm (21.5mm x 21.5mm)
Notes:Has a retrograde day display. The same as cal. 5Y67 but with the retrograde day indicator at the 9:30 position.
PDF guides: Technical guide : 5Y66A & 5Y67A
Related movements: 5Y67

Part Codes

Stem code: 351177 (tap 10)
Screw codes: 022230, 022247