Sea-Dweller 126603 Reference 126603-0001
Sea-Dweller
Overview
The Rolex Sea-Dweller 126603 has a 43 mm yellow Rolesor (Oystersteel and yellow gold) case with a black bezel and a black dial. Inside is the self-winding Rolex calibre 3235, which has a 70 hour power reserve. The watch is water resistant to 1,220 metres. The model has one reference, 126603-0001.
- Case diameter
- 43 mm
- Movement
- Calibre 3235
- Water resistance
- 1220 m
- Power reserve
- 70 h
Specifications
Specifications from the1916company.com. Last checked . SourcesCase
- Diameter
- 43 mm
- Material
- Yellow Rolesor (Oystersteel and yellow gold)
- Crystal
- Sapphire, Cyclops lens over the date
- Water resistance
- 1220 m
- Bezel
- Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in black ceramic, numerals and graduations coated in gold
Dial
- Colour
- Intense black
Movement
- Calibre
- Rolex 3235
- Type
- Automatic
- Power reserve
- 70 h
Bracelet or strap
- Bracelet or strap
- Oyster, three-piece solid links
Not yet recorded: thickness, lug width, lug-to-lug, case back, shape, indexes, hands, functions, years.
Sea-Dweller 126603 questions
What size is the Rolex Sea-Dweller 126603?
The Rolex Sea-Dweller 126603 has a 43 mm case.
What movement does the Rolex Sea-Dweller 126603 use?
It uses the Rolex calibre 3235.
What is the Rolex Sea-Dweller 126603 case made of?
The case is yellow Rolesor (Oystersteel and yellow gold).
Is the Rolex Sea-Dweller 126603 water resistant?
It is rated to 1220 m.
About the Rolex Sea-Dweller
The Sea-Dweller dates from 1967 and was built for saturation divers, who spend long periods at depth breathing a helium and oxygen mix. Its defining feature is the helium escape valve, which lets helium that has entered the case escape during decompression so the crystal is not forced off. The first production reference, 1665, had a 40mm case rated to 610 metres, and later references raised this to 1,220 metres. In 2017 Rolex enlarged the case to 43mm with reference 126600, which added calibre 3235 and, for the first time on a Sea-Dweller, a Cyclops lens over the date. A steel and yellow gold version, reference 126603, followed in 2019.
