| SPECIFICATIONS: | |
| Make | Rolex |
| Model | Day-Date 40 |
| Reference | 228348rbr-0005 |
| MODEL CASE | |
| Model case | Oyster, 40 mm, yellow gold, and diamonds |
| Oyster architecture | Monobloc middle case, screw-down case back, and winding crown |
| Diameter | 40 mm |
| Material | 18 ct yellow gold |
| Bezel | Set with diamonds |
| Winding crown | Screw-down, Triplock triple 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 | 3255, Manufacture Rolex |
| Precision | -2/+2 sec/day, after casing |
| Functions | Centre hour, minute, and seconds hands Instantaneous day and date in apertures, unrestricted rapid-setting. Stop-seconds for precise time setting |
| Oscillator | Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers |
| Winding | Bidirectional self-winding via Perpetual rotor |
| Power reserve | Approximately 70 hours |
| BRACELET | |
| Bracelet | President, semi-circular three-piece links |
| Bracelet material | 18 ct yellow gold |
| Clasp | Concealed folding Crownclasp |
| DIAL | |
| Dial | Silver, diagonal motif |
| CERTIFICATION | |
| Superlative Chronometer (COSC + Rolex certification after casing) | |
| WHAT IS INCLUDED | |
| Box | Original Rolex Watch box |
| Booklets | Yes |
| Warranty | Rolex Warranty card |
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