{"product_id":"montre-tudor-black-bay-fifty-eight-gmt-en-acier-inoxydable","title":"TUDOR \"Black Bay Fifty-Eight GMT\" Watch in Stainless Steel","description":"\u003cp\u003eTUDOR “Black Bay Fifty-Eight GMT” watch, model 7939G1A0NRU, in stainless steel, from 2026. It features a round case with a diameter of 39 mm and a thickness of 12.8 mm, as well as a black dial protected by Sapphire crystal and featuring the iconic “Snowflake” hands. Powered by a Tudor in-house mechanical self-winding movement, caliber MT5450-U, featuring 27 Rubies, a frequency of 28,800 vibrations per hour, and offering a 65-hour power reserve, it features a GMT function that displays a second time zone. Water-resistant to 200 meters, it features a rotating bezel and a stainless steel case.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003eIn excellent overall condition, this watch comes with its original Tudor box and papers (Full Set 2026). It is covered by Tudor’s five-year international Warranty, valid through 2031.\u003c\/p\u003e\u003cp\u003eA quick note: Tudor officially lists 34 Rubies—not 27—for the MT5450-U caliber. The date function is also present, with a date window at the 3 o’clock position.\u003c\/p\u003e","brand":"La Joaillerie Rive Gauche","offers":[{"title":"Default Title","offer_id":55455379915079,"sku":"2331","price":5778.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0563\/5145\/7440\/files\/montre-tudor-black-bay-fifty-eight-gmt-en-acier-inoxydable-4366452.png?v=1792251762","url":"https:\/\/castafiore.com\/products\/montre-tudor-black-bay-fifty-eight-gmt-en-acier-inoxydable","provider":"Castafiore","version":"1.0","type":"link"}