| SPECIFICATIONS: |
|
| Make |
Rolex |
| Model |
Datejust 31 |
| Reference |
278289rbr-0007 |
| MODEL CASE |
| Model case |
Oyster, 31 mm, white gold and diamonds |
| Oyster architecture |
Monobloc middle case, screw-down case back, and winding crown |
| Diameter |
31 mm |
| Material |
18 ct white gold |
| Bezel |
Set with diamonds |
| Winding crown |
Screw-down, Twinlock double waterproofness system |
| Crystal |
Scratch-resistant sapphire, Cyclops lens over the date |
| Water-resistance |
Waterproof to 100 meters / 330 feet |
| MOVEMENT |
| Movement |
Perpetual, mechanical, self-winding |
| Caliber |
2236, Manufacture Rolex |
| Precision |
-2/+2 sec/day, after casing |
| Functions |
Centre hour, minute, and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting |
| Oscillator |
Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers |
| Winding |
Bidirectional self-winding via Perpetual rotor |
| Power reserve |
Approximately 55 hours |
| BRACELET |
| Bracelet |
President, semi-circular three-piece links |
| Bracelet material |
18 ct white gold |
| Clasp |
Concealed folding Crownclasp |
| DIAL |
|
Dial
|
White |
| CERTIFICATION |
| Superlative Chronometer (COSC + Rolex certification after casing) |
| WHAT IS INCLUDED |
| Box |
Original Rolex Watch box |
| Booklets |
Yes |
| Warranty |
Balance of Rolex 5-year Warranty |
|
|
