Datejust 31 Rose Gold / Diamond / Grey – Roman / President

REF 278285RBR-0027

The updated Rolex Datejust 31 was introduced in 2018 in either rose, white or yellow gold – all powered by the new caliber 2236. The two tone 'Rolesor' variations were added to the collection one year later. Ref. 278285rbr has a rose gold case crowned by a diamond-set bezel. It is available with a number of different dials and can be fitted with either an Oyster or President bracelet.

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Overview

Reference	278285rbr-0027
Produced	2019
Limited edition	no

Case

Case material	Rose Gold
Case shape	Round
Case diameter	31.00 mm
Lug width	16.00 mm
Crystal	Sapphire
Bezel	Gem-Set
Case back	Closed
Water resistance	100.00 m

Dial

Dial color	Grey
Index type	Roman Numerals
Hand style	Stick
Hands	Hours, Minutes, Seconds
Calendar	Date
Display	Analog
Additional features	Chronometer

Movement

Caliber	2236
Base caliber	Rolex 2235
Movement type	Automatic
Frequency	28800 bph
Jewels	31
Power reserve	55 h
Movement diameter	20.00 mm

Caliber Notes

This self-winding mechanical movement with date display is entirely manufactured by Rolex and inaugurates a new generation of movements. Its design and quality manufacture ensure peerless precision and reliability. Like all Rolex Perpetual movements, the 2236 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. It was first introduced in 2014. It the first movement to be fitted with the Syloxi (silicon) hairspring.

More Data

Brand	Rolex

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