Rolex Datejust 31 Silver Dial Diamond Bezel 18k Yellow Gold Steel Oyster 278343-0001
The Rolex Datejust 278343-0001 is a luminous and versatile interpretation of the mid-size Datejust. This specific reference pairs the understated elegance of a silver sunray dial with the radiant prestige of a diamond-set bezel. The dial features polished 18k yellow gold Roman numeral hour markers, with a unique diamond-set Roman VI (comprising 11 diamonds) that serves as a sparkling focal point at the base of the dial. Surrounding this is the 18k yellow gold domed bezel, meticulously set with 24 brilliant-cut diamonds in a “scattered” style that offers a more modern, delicate shimmer than a traditional full pavé bezel.
Crafted in Yellow Rolesor (a combination of Oystersteel and 18k yellow gold), this model is fitted with the Oyster bracelet. The flat three-piece links provide a sporty yet luxurious foundation, grounding the high-jewelry elements of the head with structural strength. Inside the 31mm case resides the Calibre 2236, an automatic movement featuring Rolex’s patented silicon Syloxi hairspring, which ensures “Superlative Chronometer” precision ($-2/+2$ seconds per day) and a robust 55-hour power reserve.
Key Features
| Model Name | Datejust 31 |
| Reference Number | 278343-0001 (Ref. 278343RBR) |
| Case Material | Yellow Rolesor (Steel and 18k Yellow Gold) |
| Dimensions | 31 mm |
| Bezel | Domed, set with 24 Diamonds |
| Crystal | Scratch-resistant Sapphire with Cyclops Lens |
| Dial | Silver Sunray with Diamond-set Roman VI |
| Movement | Calibre 2236 (Manufacture Rolex) |
| Power Reserve | Approximately 55 Hours |
| Bracelet | Oyster, flat three-piece links |
| Clasp | Folding Oysterclasp with Easylink 5mm extension |
| Water Resistance | 100 m (330 ft) |
The Sunray Silver Dial.
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The Pave VI: While the other Roman numerals are crafted in solid 18k yellow gold, the “VI” is set with 11 brilliant-cut diamonds. This “secret” detail provides a sophisticated touch of brilliance that complements the diamond bezel without overcrowding the dial.
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Masterful Brushing: The silver sunray finish is obtained through brushing techniques that create grooves running from the center, allowing the dial to transition from a bright metallic white to a soft champagne-grey as the light moves.
Sporty Sophistication.
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Oyster Bracelet Presence: Choosing the Oyster bracelet for this diamond-bezel model creates a “sport-luxe” aesthetic. The broad, polished 18k yellow gold center links provide a mirror-like contrast to the brushed steel outer links, making the watch feel substantial and modern on the wrist.
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High-Precision Engineering: The silicon Syloxi hairspring is impervious to magnetic fields and up to 10 times more precise than a traditional hairspring when subjected to shocks, making it an ideal “daily driver” luxury watch.











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