The 6300 series was a family of mechanical watch movements from Seiko in the 1980's.
Produced from 1984, the 6300 family was based on the earlier 6100 family. It ran at 21,600 A/h and used an automatic winding mechanism, Seiko's Magic Lever.
| Winding | Speed | Model | Jewels | Notes |
|---|---|---|---|---|
| Automatic | 21600 | 6308A | 17 | Date |
| 6309A | Day/date | |||
| 6319A | 21 |