Rolex · Reference archive
Datejust 31 Yellow Gold / Fluted / Malachite / President
REF 278278-0004
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. 278278 has a yellow gold case with fluted bezel. It is available with a number of different dials and can be fitted with either an Oyster or President bracelet.
Overview
| Reference | 278278-0004 |
|---|---|
| Produced | 2018 |
| Limited edition | no |
Case
| Case material | Yellow gold |
|---|---|
| Case shape | Round |
| Case diameter | 31.00 mm |
| Lug width | 16.00 mm |
| Crystal | Sapphire |
| Case back | Closed |
| Water resistance | 100.00 m |
Dial
| Dial color | Green |
|---|---|
| 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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