Oyster Perpetual 31 277203 Reference 277203-0001
Oyster Perpetual 31
Overview
The Rolex Oyster Perpetual 31 277203 comes in a 31 mm yellow Rolesor (Oystersteel and yellow gold) case. It runs on the self-winding Rolex calibre 2232 with a 55 hour power reserve and is water resistant to 100 metres. The model has one reference, 277203-0001. The watch is supplied on an Oyster bracelet.
- Case diameter
- 31 mm
- Movement
- Calibre 2232
- Water resistance
- 100 m
- Power reserve
- 55 h
Specifications
Specifications from astrua.com and knar.com. Last checked . SourcesCase
- Diameter
- 31 mm
- Material
- Yellow Rolesor (Oystersteel and yellow gold)
- Water resistance
- 100 m
- Bezel
- Domed
Dial
- Colour
- Slate
Movement
- Calibre
- Rolex 2232
- Type
- Automatic
- Power reserve
- 55 h
Bracelet or strap
- Bracelet or strap
- Oyster, three-piece solid links
Not yet recorded: thickness, lug width, lug-to-lug, crystal, case back, shape, indexes, hands, functions, years.
Oyster Perpetual 31 277203 questions
What size is the Rolex Oyster Perpetual 31 277203?
The Rolex Oyster Perpetual 31 277203 has a 31 mm case.
What movement does the Rolex Oyster Perpetual 31 277203 use?
It uses the Rolex calibre 2232.
What is the Rolex Oyster Perpetual 31 277203 case made of?
The case is yellow Rolesor (Oystersteel and yellow gold).
Is the Rolex Oyster Perpetual 31 277203 water resistant?
It is rated to 100 m.
About the Rolex Oyster Perpetual
The Oyster Perpetual combines two early Rolex developments: the Oyster case of 1926, the first waterproof wristwatch case, and the Perpetual self-winding movement introduced in 1931. As a model line it is the simplest in the Rolex catalogue, a time-only watch. A 2020 update brought lacquer dials in bright colours and a 41mm model in place of the 39mm, with calibre 3230 in the 41mm and 36mm sizes and smaller sizes alongside them. In 2026, the centenary of the Oyster case, Rolex released a 41mm Oyster Perpetual in Rolesor, combining steel with yellow gold.
