Datejust 31 278344RBR Reference 278344RBR-0021
Datejust 31
Overview
The Rolex Datejust 31 278344RBR has a 31 mm white Rolesor (Oystersteel and white gold) case. The movement is the self-winding Rolex calibre 2236, with a 55 hour power reserve. Water resistance is 100 metres. The model has one reference, 278344RBR-0021.
- Case diameter
- 31 mm
- Movement
- Calibre 2236
- Water resistance
- 100 m
- Power reserve
- 55 h
Specifications
Specifications from pragnell.co.uk. Last checked . SourcesCase
- Diameter
- 31 mm
- Material
- White Rolesor (Oystersteel and white gold)
- Water resistance
- 100 m
- Bezel
- Domed, set with diamonds
Movement
- Calibre
- Rolex 2236
- Type
- Automatic
- Power reserve
- 55 h
Not yet recorded: thickness, lug width, lug-to-lug, crystal, case back, shape, colour, indexes, hands, functions, years.
Datejust 31 278344RBR questions
What size is the Rolex Datejust 31 278344RBR?
The Rolex Datejust 31 278344RBR has a 31 mm case.
What movement does the Rolex Datejust 31 278344RBR use?
It uses the Rolex calibre 2236.
What is the Rolex Datejust 31 278344RBR case made of?
The case is white Rolesor (Oystersteel and white gold).
Is the Rolex Datejust 31 278344RBR water resistant?
It is rated to 100 m.
About the Rolex Datejust
Rolex introduced the Datejust in 1945 to mark the company's 40th anniversary. It was the first self-winding chronometer wristwatch to show the date in a window on the dial. The original model combined the waterproof Oyster case with the Jubilee bracelet, which was introduced alongside it, and was launched in a 36mm case, still regarded as the classic size. The Datejust is offered today in sizes from 28mm to 41mm in steel, Rolesor and solid gold, with fluted or smooth bezels and a choice of Oyster or Jubilee bracelets.
