| Brand |
Rolex |
| Series |
Datejust 31 |
| Model Number |
278285RBR (Silver Diamond Dial Variant) |
| Case Material |
18k Everose Gold |
| Case Size |
31 mm |
| Bezel |
Set with 46 brilliant-cut diamonds |
| Dial |
Silver with sunray finish; 10 diamond hour markers in 18k gold settings |
| Movement |
Perpetual, mechanical, self-winding (Calibre 2236) |
| Oscillator |
Syloxi hairspring in silicon; Paraflex shock absorbers |
| Power Reserve |
Approximately 55 hours |
| Bracelet |
President, semi-circular three-piece links in 18k Everose Gold (MDP Configuration) |
| Clasp |
Concealed folding Crownclasp |
| Water Resistance |
100 meters / 330 feet |