Shown: reference 278343RBR-0015
Rolex

Datejust 31 278343RBR Reference 278343RBR-0015

Datejust 31

Overview

A 31 mm yellow Rolesor (Oystersteel and yellow gold) case with a green dial defines the Rolex Datejust 31 278343RBR. Inside is the self-winding Rolex calibre 2236, which has a 55 hour power reserve. The watch is water resistant to 100 metres. The model has 2 references.

Rolex introduced the Datejust in 1945 to mark the company's 40th anniversary. About the Rolex Datejust

Case diameter
31 mm
Movement
Calibre 2236
Water resistance
100 m
Power reserve
55 h

Specifications

Specifications from elcorteingles.es. Last checked . Sources

Case

Diameter
31 mm
Material
Yellow Rolesor (Oystersteel and yellow gold)
Crystal
Sapphire, Cyclops lens over the date
Water resistance
100 m
Bezel
Domed, set with diamonds

Dial

Colour
Olive green set with diamonds

Movement

Calibre
Rolex 2236
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, case back, shape, indexes, hands, functions, years.

Sources

  • elcorteingles.es: case, water resistance, dial, movement, bracelet. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementRolex calibre 2236Specifications and every watch that uses it

Other versions of the Datejust 31 278343RBR

The Rolex Datejust 31 278343RBR covers 2 references, with a 31 mm case. All use the Rolex calibre 2236.

Each version

  1. 278343RBR-0015

    Green dial · Yellow Rolesor (Oystersteel and yellow gold) · 31 mm

    View specifications
  2. 278343RBR-0016

    Yellow Rolesor (Oystersteel and yellow gold) · 31 mm

    View specifications
Compare all 2 references in a table
References of the Rolex Datejust 31 278343RBR, with dial, case material, size and production years
ReferenceDialCaseSizeProduced
278343RBR-0015GreenYellow Rolesor (Oystersteel and yellow gold)31 mm–
278343RBR-0016–Yellow Rolesor (Oystersteel and yellow gold)31 mm–

Datejust 31 278343RBR questions

What size is the Rolex Datejust 31 278343RBR?

The Rolex Datejust 31 278343RBR has a 31 mm case.

What movement does the Rolex Datejust 31 278343RBR use?

It uses the Rolex calibre 2236.

What is the Rolex Datejust 31 278343RBR case made of?

The case is yellow Rolesor (Oystersteel and yellow gold).

Is the Rolex Datejust 31 278343RBR water resistant?

It is rated to 100 m.

How many Rolex Datejust 31 278343RBR references are there?

Our database lists 2 references.

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.

Sources: Rolex Datejust (Wikipedia), The Complete Guide to the Rolex Datejust (Sotheby's), 2020 Rolex Submariner Date 41mm (Monochrome Watches, notes 3235 shared with Datejust 36 and 41)