{"product_id":"2021-tudor-black-bay-heritage-complete-original-box-papers","title":"2021 Tudor Black Bay Heritage Complete Original Box \u0026 Papers","description":"\u003cp\u003eThe Black Bay 41 came in three core bezel colors, and the 79230B is the blue one — distinct from the burgundy\/red 79230R and the all-black 79230N. The blue aluminium insert against a domed black dial gives it a cooler, more nautical, vintage-Submariner feel than its siblings, while keeping Tudor's signature cues: the angular Snowflake hour hand, the riveted-style steel bracelet (or a matching blue strap), and a domed dial and crystal that nod to the brand's 1950s–60s dive watches.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThe other thing that defines a 2021 example specifically is what's inside. By this point the 79230 series ran Tudor's in-house Manufacture Calibre MT5602 — a COSC-certified movement with a 70-hour power reserve, beating at 28,800 vibrations\/hour — which set this generation apart from the earlier ETA-powered Black Bays (the 79220 references). It's also a generation before Tudor's newer Master Chronometer (METAS) Black Bay, so a 2021 79230B is the in-house, COSC-certified version rather than the later METAS update\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKey details — mechanical \u0026amp; technical\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement:\u003c\/strong\u003e Tudor Manufacture Calibre MT5602, self-winding (automatic) with bidirectional rotor system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChronometer:\u003c\/strong\u003e COSC-certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower reserve:\u003c\/strong\u003e ~70 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJewels \/ beat:\u003c\/strong\u003e 25 jewels, 28,800 vph\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e hours, minutes, seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e stainless steel, 41mm diameter, ~13mm thick, ~50mm lug-to-lug, 22mm lug width, polished and satin finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel:\u003c\/strong\u003e rotating 60-minute dive bezel with matt blue anodised aluminium insert (most retailers list it as unidirectional, though a couple describe it as bidirectional — worth verifying on the actual piece)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown:\u003c\/strong\u003e screw-down, engraved with the Tudor rose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e domed sapphire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e black, domed, with luminous Snowflake hands and hour markers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater resistance:\u003c\/strong\u003e 200m \/ 660ft (20 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBracelet\/strap:\u003c\/strong\u003e steel riveted-style bracelet with folding clasp\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Tudor","offers":[{"title":"Default Title","offer_id":45454645854287,"sku":"070Z5","price":3075.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/1733\/5375\/files\/221ec62e77d63b81627555e420098ced.jpg?v=1780534530","url":"https:\/\/kingdomwatchcompany.com\/products\/2021-tudor-black-bay-heritage-complete-original-box-papers","provider":"Kingdom Watch Company","version":"1.0","type":"link"}