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.
- Seiko Prospex 'Sumo'45 mm
- Sinn U144 mm
- Citizen Promaster Dive Automatic 'Fugu'44 mm
The differences
Case diameter
45 mm
44 mm
44 mm
Lug to lug
The number that decides how it wears.
52.6 mm
Thickness
12.9 mm
14.7 mm
13.1 mm
Lug width
20 mm
22 mm
20 mm
Water resistance
200 m
1000 m
200 m
Power reserve
70 h
41 h
42 h
Weight
188 g
Price
Approximate manufacturer RRP.
€900
€3,150
€550
Details
| Detail | Prospex 'Sumo' | U1 | Promaster Dive Automatic 'Fugu' |
|---|---|---|---|
| Style | Diver | Diver | Diver |
| Movement | 6R35, Automatic | SW200-1, Automatic | 8204, Automatic |
| Beat rate | 21,600 vph | 28,800 vph | 21,600 vph |
| Crystal | Sapphire | Sapphire | Sapphire |
| Case | Stainless steel | Stainless steel | Stainless steel |
| Bezel | Dive | Dive | Dive |
| Dial | Black | Matte black | Black with yellow flange |
| Strap | Steel bracelet | Steel bracelet | Rubber strap |
| Origin | Japan | Germany | Japan |
| Introduced | 2019 | — | 2023 |
Rows where the watches differ are shown darker.