Seiko 7M42 Movement Details
                
                Seiko caliber 7M42 is a kinetic (formerly AGS) watch movement. Production started around 1988.
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| Battery: | 3023.24R (replaces 3029.110) / (Rechargeable capacitor) | 
| Accuracy: | ±15 seconds/month | 
| Day / date? | Date only | 
| GMT / world time? | No | 
| Chronograph? | No | 
| Number of jewels: | 5 | 
| Development division: | Suwa (Nagano Prefecture, Japan) |