Hamilton
Calibre H-21
Automatic chronograph
Specifications
- Maker
- Hamilton
- Type
- Automatic chronograph
- In-house
- Not stated
- Power reserve
- 60 h
- Frequency
- Not found in sources
Sources
- Official Hamilton retrieved October 19, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Hamilton Khaki Aviation X-Wind Auto Chrono 44 mm H77506540 | 44 mm | 15.55–15.6 mm | 55 mm |
| Hamilton Khaki Field Auto Chrono 42 mm H71626735 | 42 mm | 14.5 mm | 51 mm |