{"product_id":"rolex-datejust-278240-31mm-black-roman-domed-bezel-jubilee-oystersteel","title":"Rolex Datejust 31 278240-0002 Black Roman Numeral Dial Domed Bezel Jubilee Oystersteel","description":"\u003cp\u003eBuilt around a 31 mm round Oystersteel case, this Datejust 31 features a monobloc middle case construction with a screw-down case back and screw-down winding crown secured by Rolex's Twinlock double waterproofness system. The case is water-resistant to 100 metres and is fitted with a scratch-resistant sapphire crystal housing a Cyclops lens positioned over the date window.\u003c\/p\u003e\u003cp\u003eThe black dial is dressed with Roman numeral indices, while the domed bezel gives the watch a classic, understated profile. The Jubilee bracelet — crafted in Oystersteel with five-piece links — fastens via a concealed folding Crownclasp for a secure and refined fit on the wrist.\u003c\/p\u003e\u003cp\u003eInside runs the Calibre 2236, a perpetual mechanical self-winding movement produced by Rolex. It offers a power reserve of approximately 55 hours, a precision rating of -2\/+2 seconds per day after casing, and is certified as a Superlative Chronometer through both COSC and Rolex's own post-casing certification. The oscillator incorporates a Syloxi silicon hairspring with patented geometry and Paraflex shock absorbers, while the movement winds bidirectionally via a Perpetual rotor.\u003c\/p\u003e","brand":"It's That Time","offers":[{"title":"Default Title","offer_id":49919957106917,"sku":null,"price":12990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/5600\/7653\/files\/Rolex-278240-0002-black-roman-jub-1.jpg?v=1782916841","url":"https:\/\/itsthattimenyc.com\/products\/rolex-datejust-278240-31mm-black-roman-domed-bezel-jubilee-oystersteel","provider":"It's That Time ","version":"1.0","type":"link"}