Rolex · Reference archive
Datejust 31 White Gold / Diamond / White – Roman / President
REF 278289RBR-0007
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. 278289rbr has a white gold case with a diamond-set bezel. It is available with a number of different dials and comeson a President-style bracelet exclusively.
Overview
| Reference | 278289rbr-0007 |
|---|---|
| Produced | 2018 |
| Limited edition | no |
Case
| Case material | White 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 | White |
|---|---|
| Index type | Roman Numerals |
| Hand style | Stick |
| Hands | Hours, Minutes, Seconds |
| Calendar | Date |
| Display | Analog |
| Additional features | Chronometer |
Movement
| Caliber | 2235 |
|---|---|
| Movement type | Automatic |
| Frequency | 28800 bph |
| Jewels | 31 |
| Power reserve | 48 h |
| Movement diameter | 20.00 mm |
Caliber Notes
This model is equipped with calibre 2235, a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 2235 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable
More Data
| Brand | Rolex |
|---|
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