{"product_id":"rolex-datejust-278381rbr-0018-slate-31mm-dial-diamond-set-bezel-jubilee-bracelet-watch","title":"Rolex Datejust 31 Reference 278381RBR-0018 Slate Dial Diamond Bezel Jubilee Bracelet","description":"\u003cp\u003eAt 31 mm, this Datejust 31 is built around a round Oyster case crafted from Everose Rolesor — Rolex's combination of Oystersteel and Everose gold. The monobloc middle case is sealed by a solid case back and a screw-down winding crown featuring the Twinlock double waterproofness system, delivering water resistance to 100 metres \/ 330 feet. A scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the slate dial, while the bezel is set with diamonds.\u003c\/p\u003e\u003cp\u003eThe slate dial features index stick hour markers and runs on the Calibre 2236, a perpetual mechanical self-winding movement from Manufacture Rolex. The oscillator uses a Syloxi silicon hairspring with patented geometry and high-performance Paraflex shock absorbers, achieving a precision of -2\/+2 seconds per day after casing. Bidirectional self-winding via the Perpetual rotor provides a power reserve of approximately 55 hours, with functions including centre hour, minute, and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time setting. The movement is COSC certified.\u003c\/p\u003e\u003cp\u003eThe watch is presented on a Jubilee bracelet constructed in five-piece links of Everose Rolesor, fastened by a concealed folding Crownclasp. Reference 278381RBR-0018 brings together the date complication, diamond detailing, and the warm tones of Everose gold in a 31 mm format suited to a variety of wrists.\u003c\/p\u003e","brand":"It's That Time","offers":[{"title":"Default Title","offer_id":49919939150053,"sku":null,"price":26775.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/5600\/7653\/files\/Rolex-278381rbr-0018-slate-diamondset-jubilee.jpg?v=1782916616","url":"https:\/\/itsthattimenyc.com\/products\/rolex-datejust-278381rbr-0018-slate-31mm-dial-diamond-set-bezel-jubilee-bracelet-watch","provider":"It's That Time ","version":"1.0","type":"link"}