Datejust 31 Silver Diamond Dial Diamond Bezel Steel 18KT Yellow Gold Jubilee M278383RBR-0020
The Rolex Datejust 31 Reference M278383RBR-0020 is a jewel-like expression of luxury and precision, featuring high levels of diamond setting on both the bezel and dial. This model presents a bright Silver Dial set with diamonds, a magnificent Diamond-Set Bezel (often featuring extra large or ‘RBR’ style diamonds), and the elegant Jubilee bracelet, all crafted in the iconic Rolesor Yellow Gold design (Oystersteel and 18K Yellow Gold).
The watch features a robust monobloc middle case in durable Oystersteel (Stainless Steel). The case is water-resistant to 100 metres (330 feet), secured by the screw-down Twinlock winding crown.
The case is framed by the mesmerizing Diamond-Set Bezel. The ‘RBR’ (Rolex Briolette-cut Rims) or similar codes can indicate an enhanced diamond setting, where the brilliant-cut diamonds are set edge-to-edge in solid 18K Yellow Gold, providing maximum light refraction and sparkle.
The timepiece is fitted with the elegant, five-piece link Jubilee bracelet, renowned for its comfort and fluid appearance. Crafted in a two-tone Rolesor Yellow Gold style, the outer links are in Oystersteel while the inner links are in polished 18K Yellow Gold. The bracelet fastens securely with the folding Oysterclasp, which includes the Easylink 5 mm comfort extension link.
Key Features
| Case | |
| Material | Oystersteel and 18K Yellow Gold (Rolesor Yellow Gold) |
| Dimensions | 31 mm (Modern mid-size) |
| Water Resistance | 100 metres (330 feet) |
| Bezel | Diamond-Set (Enhanced Setting, in 18K Yellow Gold) |
| Crystal | Scratch-resistant Sapphire with Cyclops lens |
| Reference | 278383RBR (Specific dial code: 0020) |
| Dial | |
| Color | Silver (Bright, neutral Sunray finish) |
| Markers | 10 Diamond Hour Markers (Set in 18K Yellow Gold) |
| Aesthetic | Maximum diamond sparkle in a classic two-tone execution with the elegant Jubilee bracelet |
| Movement | |
| Type | Perpetual, mechanical, self-winding |
| Power Reserve | Approx. 55 hours |
| Caliber | Calibre 2236 (Featuring Syloxi hairspring) |
| Technology | Superlative Chronometer |
| Bracelet/Strap | |
| Material | Jubilee (five-piece links) in Rolesor Yellow Gold (Steel & Yellow Gold) |
| Clasp | Folding Oysterclasp with Easylink 5mm extension |
| Additional Info | |
| Watch Style | Rolesor Yellow Gold Ultra-Luxury Dress Watch |
| Construction | Steel Case/Outer Links with 18K Yellow Gold Diamond Bezel/Inner Links |
| Key Features | Diamond-Set Bezel and Dial, Calibre 2236, Jubilee Bracelet |
| Note | The ‘383’ suffix indicates a Rolesor Yellow Gold case with a diamond-set bezel (31mm size). The ‘RBR’ often denotes an especially rich bezel diamond setting. |
The centerpiece is the bright Silver Diamond Dial . This classic, clean silver hue is typically executed with a sunray finish. The dial features 10 brilliant-cut Diamond Hour Markers (with the Rolex Crown at 12 o’clock and a date window at 3 o’clock), meticulously set in 18K Yellow Gold surrounds, greatly enhancing the overall brilliance.
The date is displayed at 3 o’clock, magnifying beneath the Cyclops lens.
Under the dial lies the robust and precise Calibre 2236 movement. This self-winding mechanical movement incorporates the patented Syloxi hairspring, providing exceptional performance, accuracy, and reliability, and is certified as a Superlative Chronometer, completing this distinguished timepiece.








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