Rolex Datejust 31 Ref. 278384RBR-0020
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About this product
Dark grey under a flat diamond-set white gold bezel, applied markers only — the sharper setting, where 278344RBR uses a domed profile. Charcoal in a cool case ringed by a hard band of stones. On the five-link Jubilee in 31mm White Rolesor. Calibre 2236 drives it at roughly fifty-five hours with a silicon Syloxi hairspring.
This watch comes with the manufacturer's warranty card, backed up by our own Alan Furman & Co warranty.
Specifications
- Datejust Collection
- Oyster, 31mm White Rolesor — Oystersteel and 18 ct White Gold Case
- Monobloc Middle Case with Screw-Down Case Back
- Calibre 2236, Perpetual Self-Winding Movement
- Superlative Chronometer, Officially Certified
- Precision –2/+2 sec/day After Casing
- Approximately 55-Hour Power Reserve
- Syloxi Hairspring in Silicon
- Paraflex Shock Absorbers
- Dark Grey Dial with Applied Index Markers
- Diamond-Set White Gold Bezel
- Instantaneous Date at 3 o'clock with Cyclops Lens
- Screw-Down Twinlock Winding Crown
- Scratch-Resistant Sapphire Crystal
- Water Resistance – 100m/330ft
- Jubilee Bracelet in White Rolesor
- Oysterclasp Folding Clasp with Easylink 5mm Comfort Extension