Seiko 4M21 Movement Details

Seiko caliber 4M21 is a kinetic (formerly AGS) watch movement.
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Sub-brands: Laurel
Battery:3027.4MZ (replaces 3029.114 and 3029.116) / (Rechargeable capacitor)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Rate:32,768 Hz
Number of jewels:9
Size / diameter:25.6mm
Notes:Has a power reserve indicator function.
PDF guides: Technical guide : 4M21A

Part Codes

Stem code: 351552
Screw codes: 012354, 022490 (screw for oscillating weight)