Seiko 850 movement
Seiko caliber 850 is a hand-winding watch movement.
| Sub-brands: | Champion |
| GMT/world time? | No |
| Chronograph? | No |
| Rate: | 18,000 bph |
| Number of jewels: | 17 |
| Movement size: | 25.6mm (11 1/2") |
| Related movements: | 851 |
Articles (repairs, services & mods)
- The Ultimate Seiko Alpinist Collectors Guide [thespringbar.com]