Hamilton Timeless Classic
Most Hamilton Timeless Classic references take a 20 mm watch strap: 7 of 10.
Hamilton Timeless Classic lug width by case size
10 references measured. Updated 2026-10-30.
| Case | Lug width | References | Watch strap attachment | For example |
|---|---|---|---|---|
| 38 mm | 20 mm · 16 mm on 1 | 5 | — | H38415581, H38415731, H38435221 |
| 42 mm | 20 mm · 16 mm on 2 | 5 | — | H38715181, H38715281, H38715581 |
References that take a different watch strap
Every Hamilton Timeless Classic reference
Other Hamilton families
Inside each one the lug width often changes: it is the reference that decides.
- Jazzmaster 366
- Khaki Field 236
- Khaki Aviation 198
- Khaki Navy 107
- Ventura 60
- Railroad 42
- Intra-Matic 36
- American Classic 30
- Frogman 22
- Spirit of Liberty 19
- Khaki Action 18
- Broadway 17
All Hamilton families → · Why the size changes inside a family →