Seiko
Calibre 6R54
Automatic
Specifications
- Maker
- Seiko
- Type
- Automatic
- In-house
- Yes
- Power reserve
- about 72 h
- Frequency
- Not found in sources
Sources
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Seiko Prospex Land SPB377 Mechanical GMT SPB377J1 | 39.5 mm | 13.6 mm | 46.4 mm |
| Seiko Prospex Sea SPB519 1968 Heritage Diver's GMT SPB519J1 | 42 mm | 13.3 mm | 48.6 mm |