Rolex Perpetual Datejust 31 Watch of 18k Yellow Gold. Malachite dial set with diamonds. The 18k yellow gold fluted bezel. The 18k Yellow Gold President bracelet, 278278-0004. Rolex Perpetual Datejust 31 Watch of 18k Yellow Gold. Malachite dial set with diamonds. Hour markers are Roman Numerals VI and IX in 18k gold, set with 24 diamonds. Screw-down solid crown with twin lock double waterproofness system. Scratch-resistant sapphire crystal with cyclops lens over the date. The watch is equipped with central hour, minute, and seconds hands, instantaneous date with rapid setting, and stop-seconds. The 18k yellow gold fluted bezel. The Watch comes with Mechanical Self-winding Movement & 2236 Caliber w/ 31 jewels & 55 hours power reserve. The 18k Yellow Gold President bracelet with concealed folding Crownclasp. The Watch is with Rolex Watch box, Rolex Warranty Card. Covered with Rolex Warranty.
| SPECIFICATIONS: | |
| Make | Rolex |
| Model | Datejust 31 |
| Reference | 278278-0004 |
| MODEL CASE | |
| Model case | Oyster, 31 mm, Yellow Gold |
| Oyster architecture | Monobloc middle case, screw-down case back and winding crown |
| Diameter | 31 mm |
| Material | 18 ct Yellow Gold |
| Bezel | Fluted |
| Winding crown | Screw-down, Twinlock double waterproofness system |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
| Water-resistance | Waterproof to 100 metres / 330 feet |
| MOVEMENT | |
| Movement | Perpetual, mechanical, self-winding |
| Calibre | 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 Yellow Gold? |
| Clasp | Concealed folding Crownclasp |
| DIAL | |
| Dial | Malachite set with diamonds |
| Gem Setting | Roman VI and IX in 18 ct gold, set with 24 diamonds |
| CERTIFICATION | |
| Superlative Chronometer (COSC Rolex certification after casing) | |
| WHAT IS INCLUDED | |
| Box | Original Rolex Watch box |
| Booklets | Yes |
| Warranty | Rolex Warranty card |