Seiko 7770 Movement Details

Seiko caliber 7770 is a high grade analog quartz watch movement. Production was in the 1980s.
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Sub-brands: Credor
Battery:SR916SW / 373 (Silver oxide)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Rate:32,768 Hz
Number of jewels:6
Development division:Daini (Kameido, Tokyo, Japan)
Notes:The same as cal. 7771 but without a seconds hand.
Related movements: 7750 7771 7779

Part Codes

Stem code: 354371