Rolex Yacht‑Master 40 mm Blue Dial — Key Specs (Ref. 16628)
| Feature | Specification (Authentic Rolex) |
|---|---|
| Model Name | Rolex Yacht‑Master 40 |
| Reference | 16628 |
| Case Diameter | 40 mm |
| Case Material | 18 k Yellow Gold |
| Bezel | Bidirectional Rotating 60‑Minute Graduated Yellow Gold |
| Dial Color | Blue Sunburst / Blue Dial |
| Crystal | Scratch‑Resistant Sapphire |
| Movement | Rolex Calibre 3135 Automatic |
| Power Reserve | Approx. 48 hours |
| Functions | Hours, Minutes, Seconds, Date at 3 o’clock with Cyclops Lens |
| Bracelet | 18 k Yellow Gold Oyster Bracelet |
| Clasp | Fold‑Over Oysterlock Safety Clasp |
| Water Resistance | 100 m / 330 ft |
| Luminescence | Luminous Hands & Hour Markers |
| Style Category | Luxury Nautical Sports Watch |
