Compare
All drawings share one millimetre scale.
Laid on top of each other
Case outlines, lugs and dial openings, centred and to scale. The outer shape is what your wrist feels; the inner circle is what your eye reads.
- Serica 7505 Chronomètre Étanche35 mm
- Hamilton Khaki Field Murph 38mm38 mm
- Lorier Falcon36 mm
The differences
Case diameter
35 mm
38 mm
36 mm
Lug to lug
The number that decides how it wears.
41.5 mm
44 mm
Thickness
9.6 mm
11.1 mm
10.4 mm
Lug width
20 mm
20 mm
20 mm
Water resistance
200 m
100 m
100 m
Power reserve
42 h
80 h
42 h
Price
Approximate manufacturer RRP.
€1,090
€995
€600
Details
| Detail | 7505 Chronomètre Étanche | Khaki Field Murph 38mm | Falcon |
|---|---|---|---|
| Style | Field | Field | Field |
| Movement | M100, Automatic | H-10, Automatic | 9039, Automatic |
| Beat rate | 28,800 vph | 21,600 vph | 28,800 vph |
| Crystal | Sapphire | Sapphire | Sapphire |
| Case | Stainless steel | Stainless steel | Stainless steel |
| Bezel | Smooth | None | Polished |
| Dial | Polished black enamel | Black | Gloss black |
| Strap | Steel bracelet | Leather strap | Steel bracelet |
| Origin | France | Switzerland | United States |
| Introduced | — | — | 2026 |
Rows where the watches differ are shown darker.