Hamilton sizes the Khaki Field Mechanical 38 at 38mm × 9.5mm - the value field-watch reference - and the Khaki Field Auto 42 for larger wrists. The Intra-Matic Chrono H at 40mm × 14.6mm and 1969-Murph at 38mm sit as the brand's heritage anchors.
| Family | Model | Reference | Diameter | Thickness | Lug-to-Lug | Lug Width | Bracelet Taper | Water | Movement |
|---|---|---|---|---|---|---|---|---|---|
| Khaki Field | Khaki Field Mechanical 38 | H69439931 | 38 mm | 9.5 mm | 45.5 mm | 20 mm | 20 → 16 mm (NATO) | 50 m | H-50 |
| Khaki Field | Khaki Field Murph 38 | H70405730 | 38 mm | 10.0 mm | 45.5 mm | 20 mm | 20 → 16 mm (leather) | 50 m | H-10 |
| Khaki Field | Khaki Field Auto 38 | H70455533 | 38 mm | 10.5 mm | 45.5 mm | 20 mm | 20 → 16 mm | 50 m | H-10 |
| Khaki Field | Khaki Field Auto 42 | H70535031 | 42 mm | 11.5 mm | 50.0 mm | 20 mm | 20 → 18 mm | 100 m | H-10 |
| Khaki Navy | Khaki Navy Scuba 40 | H82505130 | 40 mm | 12.0 mm | 47.0 mm | 20 mm | 20 → 18 mm | 100 m | H-10 |
| Intra-Matic | Intra-Matic Auto 38 | H38755751 | 38 mm | 10.0 mm | 44.0 mm | 19 mm | 19 → 16 mm (leather) | 50 m | H-10 |
| Intra-Matic | Intra-Matic Chronograph H | H38716731 | 40 mm | 14.6 mm | 46.0 mm | 20 mm | 20 → 16 mm (leather) | 100 m | H-51-Si |
| Jazzmaster | Jazzmaster Open Heart | H32675551 | 40 mm | 11.5 mm | 47.0 mm | 20 mm | 20 → 16 mm (leather) | 50 m | H-10 |
| Jazzmaster | Jazzmaster Performer Auto Chrono | H36606730 | 42 mm | 14.5 mm | 49.0 mm | 21 mm | 21 → 18 mm | 100 m | H-31 |
| Pan Europ | Pan Europ Auto Chrono | H35756735 | 44 mm | 14.7 mm | 52.0 mm | 22 mm | 22 → 18 mm | 100 m | H-31 |
| American Classic | American Classic Boulton | H13431553 | 27.4 × 31.6 mm | 7.7 mm | 31.6 mm | 17 mm | 17 → 14 mm (leather) | 50 m | Quartz |
| Ventura | Ventura Auto | H24535551 | 32.3 × 50.3 mm | 11.0 mm | 50.3 mm | integrated | leather | 50 m | H-10 |
| Khaki Aviation | Khaki Aviation X-Wind Auto Chrono | H77912530 | 45 mm | 15.4 mm | 52.0 mm | 22 mm | 22 → 18 mm | 100 m | H-21 |
| Khaki Aviation | Khaki Pilot Pioneer | H76722531 | 41 mm | 11.7 mm | 48.0 mm | 22 mm | 22 → 18 mm (leather) | 100 m | H-10 |
Specs from the manufacturer's published technical data. Lug-to-lug values reflect commonly-cited caliper measurements where the manufacturer does not publish them and may vary by ±0.5 mm. References cover the principal current production variants per family - bezel, dial, and metal-option references usually share case dimensions.
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