Seiko 2K03 Movement Details
                
                Seiko calibre 2K03 is an analogue quartz watch movement. Production was in the 1980s.
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| Battery: | SR621SW / 364 (Silver oxide) | 
| Accuracy: | ±15 seconds/month | 
| Day / date? | No | 
| GMT / world time? | No | 
| Chronograph? | No | 
| Number of jewels: | 1 | 
| Size / diameter: | 18.1mm | 
| Height: | 2.5mm | 
| Development division: | Daini (Kameido, Tokyo, Japan) | 
| Notes: | Has a small seconds sub-dial. | 
| PDF guides: | Technical guide : 2K02A & 2K03A | 
| Related movements: | 2K00 2K01 2K02 2K22 2K23 | 
Part Codes
| Stem code: | 351291 (tap 13) | 
| Screw codes: | 012315, 016102, 016103, 016104, 016703 |