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.
- Seagull 1963 Chronograph38 mm
- Baltic Hermétique Summer37 mm
The differences
Case diameter
38 mm
37 mm
Lug to lug
The number that decides how it wears.
46 mm
Thickness
15 mm
10.8 mm
Lug width
18 mm
20 mm
Water resistance
30 m
150 m
Power reserve
42 h
42 h
Price
Approximate manufacturer RRP.
€260
€660
Details
| Detail | 1963 Chronograph | Hermétique Summer |
|---|---|---|
| Style | Chronograph | Field |
| Movement | ST1901 (ST19), Hand-wound | 9039, Automatic |
| Beat rate | 21,600 vph | 28,800 vph |
| Crystal | Acrylic (hesalite) | Sapphire |
| Case | Stainless steel | Stainless steel |
| Bezel | None | Polished |
| Dial | Gold-tint cream | Glossy orange |
| Strap | NATO strap | Rubber strap |
| Origin | China | France |
| Introduced | — | 2025 |
Rows where the watches differ are shown darker.