Seiko
Calibre 8R48
Automatic chronograph
Specifications
- Maker
- Seiko
- Type
- Automatic chronograph
- In-house
- Yes
- Power reserve
- about 45 h
- Frequency
- Not found in sources
Sources
- Official Seiko retrieved October 14, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Seiko Prospex Speedtimer SRQ047 Mechanical Chronograph SRQ047J1 | 42 mm | 14.6 mm | 49.5 mm |