Here, we have a 2021 Tudor Black Bay P01 Automatic 70150 launched at Baselworld in 2019 with its distinctive 42mm satin-finished stainless steel asymmetric case. This watch is based on an imaginative prototype developed in the late 1960s as part of their “Commando” development program. It was submitted to the US Navy but was never adopted, and Tudor patented its hinged-end link system for locking and dismantling (in case of repair) in 1968. The watch's tapered profile sits comfortably on your wrist with thick, drilled, flat-ended hinged lugs, and a lug-to-lug length of 55mm and a case thickness of 14mm give the watch an impressive wrist presence. The clever bezel-stopping system operates by raising the end link at 12 o’clock so you can rotate the bidirectional 60-notched 12-hour stepped bezel and then press it down to lock it in place at the desired hour. At 4 o’clock we have a screw-down signed crown protected by crown guards that are part of the case for added strength. A domed sapphire crystal sits above a domed matte black dial. An outer minute track surrounds disc and baton indexes coated in Super-LumiNova, marking the hours; at 3 o’clock, a framed date window, the characteristic Snowflake hands are filled with the same lume and complemented by a Snowflake counterweighted sweeping second hand. At noon, we have the Tudor motif, and at 6 o’clock, in red, “200m 660ft.”  In white, “Chronometer Officially Certified” completes this faithful recreation of a unique Prototype. On the reverse a screw-down coin-edged case back, inside an automatic Tudor Cal. MT5612, 26 jewels, 28,800 beats per hour, introduced in 2015, this in-house COSC Certified movement has a bi-directional rotor, hand winding and hacking seconds functionality for your convenience. The watch comes paired with its thick Tudor 20mm fitted strap in brown leather and rubber secured by a signed folding buckle and comes with its Tudor presentation box and paperwork.