{"product_id":"rolex-datejust-278240-31mm-dark-grey-roman-domed-bezel-jubilee-oystersteel","title":"Rolex Datejust 31 Ref. 278240-0016 Dark Grey Dial Domed Bezel Jubilee Oystersteel","description":"\u003cp\u003eMeasuring 31 mm across its round Oystersteel case, this Datejust 31 is built around Rolex's Oyster architecture — a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown that together deliver water resistance to 100 metres. A scratch-resistant sapphire crystal with a Cyclops lens over the date window sits above the dark grey dial, which is marked with Roman numerals and finished with a domed bezel.\u003c\/p\u003e\u003cp\u003eThe Oystersteel Jubilee bracelet features five-piece links and fastens with a concealed folding Crownclasp, lending the piece its distinctively refined wrist presence. Inside, the Calibre 2236 — a perpetual, mechanical, self-winding movement from Manufacture Rolex — offers a power reserve of approximately 55 hours, a precision rating of -2\/+2 seconds per day after casing, and a Syloxi silicon hairspring with Paraflex shock absorbers. Stop-seconds functionality allows for precise time setting.\u003c\/p\u003e\u003cp\u003eThe movement holds Superlative Chronometer status, reflecting both COSC certification and Rolex's own post-casing testing standards. Reference 278240-0016 is catalogued under the Datejust 31 family and represents the model in Oystersteel with this dark grey Roman dial configuration.\u003c\/p\u003e","brand":"It's That Time","offers":[{"title":"Default Title","offer_id":49919955665125,"sku":null,"price":12465.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/5600\/7653\/files\/Rolex-278240-0016-dark-grey-roman-jub-1.jpg?v=1782916835","url":"https:\/\/itsthattimenyc.com\/products\/rolex-datejust-278240-31mm-dark-grey-roman-domed-bezel-jubilee-oystersteel","provider":"It's That Time ","version":"1.0","type":"link"}