Seiko 830 Movement Details
Seiko caliber 830 is an automatic watch movement. Production started around 1963.
| Sub-brands: | Seikomatic |
| Day / date? | Day + date |
| GMT / world time? | No |
| Chronograph? | No |
| Rate: | 18,000 bph |
| Number of jewels: | 30 |
| Size / diameter: | 28.6mm |
| Height: | 3.8mm |
| Development division: | Suwa (Nagano Prefecture, Japan) |
| Notes: | Replaced cal. 603, and was replaced by cal. 840. |
| Related movements: | 394 603 8305 8306 840 |