Hamilton · American Classic
Hamilton Intra-Matic Chronograph H
Reference H38429541 · Chronograph · 40 mm
Specifications
- Reference
- H38429541
- Family
- American Classic
- Category
- Chronograph
- Status
- Current
- Case material
- Stainless steel
- Case diameter
- 40 mm
- Case thickness
- 14.4 mm Official
- Lug-to-lug
- 49 mm Official
- Lug width
- 20 mm Official
- Water resistance
- 100 m
- Bezel
- —
- Calibre
- H-51 Official
- Power reserve
- 60 h
Official product page · retrieved October 14, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Comfortable
Lug-to-lug 49 mm on a flat top of 54.1 mm: 91 % of the width.
Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 14.35 mm | Official | Hamilton | October 14, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 49 mm | Official | Hamilton | October 14, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
| Value | Type | Source | Date |
|---|---|---|---|
| 20 mm | Official | Hamilton | October 14, 2026 |
Calibre source
Official Hamilton · retrieved October 14, 2026
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
Other American Classic references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Pan Europ Day Date Auto H35405741 | 42 mm | 11.9 mm | — | H-30 |
Same brand in the data set
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Jazzmaster Open Heart Auto 40 mm H32675141 | 40 mm | 11.1 mm | — | H-10 |
| Khaki Field Mechanical 38 mm H69439931 | 38 mm | 9.5 mm | 47 mm | H-50 |
| Khaki Field Murph 38 mm H70405730 | 38 mm | 11.1 mm | — | H-10 |
| Khaki Field Auto 38 mm H70455533 | 38 mm | 11 mm | 47 mm | H-10 |
| Khaki Navy Frogman Auto 46 mm H77825330 | 46 mm | 13.6 mm | — | H-10 |
| Khaki Navy Scuba Auto 40 mm H82415130 | 40 mm | 13 mm | — | H-10 |
| Khaki Navy Scuba Auto GMT 43 mm H82555130 | 43 mm | 13.9 mm | 52 mm | H-14 |