{"product_id":"tudor-black-bay-54-blue-79000-2026","title":"Tudor - Black Bay 54 – Blue – 79000 – 2025","description":"\u003cp\u003eThe Tudor Black Bay 54 reference M79000-0001, known as the \u003cstrong\u003e“Lagoon Blue,”\u003c\/strong\u003e combines a textured, domed blue dial with the compact proportions of Tudor’s earliest diving watches. Its 37mm stainless-steel case is framed by a mirror-polished steel bezel insert without traditional printed minute graduations, giving the watch a clean, distinctly summery appearance.\u003c\/p\u003e\n\u003cp\u003eInside is Tudor’s COSC-certified Manufacture Calibre MT5400, a self-winding movement with a silicon balance spring and approximately 70 hours of power reserve. The polished and satin-finished five-link bracelet incorporates Tudor’s rapid-adjustment “T-fit” clasp for improved comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Tudor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCollection:\u003c\/strong\u003e Black Bay 54\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNickname:\u003c\/strong\u003e Lagoon Blue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e M79000-0001\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eYear:\u003c\/strong\u003e 2025\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCase:\u003c\/strong\u003e Stainless steel with polished and satin finishes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCase Diameter:\u003c\/strong\u003e 37mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCase Thickness:\u003c\/strong\u003e 11.2mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLug Width:\u003c\/strong\u003e 20mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBezel:\u003c\/strong\u003e Unidirectional 60-minute stainless-steel bezel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBezel Insert:\u003c\/strong\u003e Mirror-polished steel without printed minute graduations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDial:\u003c\/strong\u003e Domed and textured Lagoon Blue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMovement:\u003c\/strong\u003e Tudor Manufacture Calibre MT5400, mechanical and self-winding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Reserve:\u003c\/strong\u003e Approximately 70 hours\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFrequency:\u003c\/strong\u003e 28,800 vibrations per hour\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal:\u003c\/strong\u003e Domed sapphire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCaseback:\u003c\/strong\u003e Screw-down stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e 200 metres\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBracelet:\u003c\/strong\u003e Five-link stainless-steel bracelet with polished and satin finishes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClasp:\u003c\/strong\u003e Tudor “T-fit” rapid-adjustment clasp\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, minutes and central seconds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e COSC-certified chronometer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecial Features:\u003c\/strong\u003e Silicon balance spring, bidirectional winding rotor, screw-down crown and luminescent Snowflake hands.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Investment Watches Inc","offers":[{"title":"Default Title","offer_id":57211612430662,"sku":"A2314","price":6450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/5559\/3658\/files\/IMG_2859.png?v=1789078947","url":"https:\/\/www.investmentwatches.com\/products\/tudor-black-bay-54-blue-79000-2026","provider":"Investment Watches Inc","version":"1.0","type":"link"}