Pre-owned Tudor Black Bay watch model MT5612, case: Silver-tone stainless steel. Bracelet: Same material. Bezel: Unidirectional rotating black bezel with titanium insert (if applicable) or plain steel. Dial: Black analog dial featuring gold-tone hands and applied index hour markers. Minute markers along the outer rim of the bezel. Luminescent coating on hour markers/hands for visibility in low light conditions. Movement: Tudor Calibre MT5602 automatic chronometer movement, contains 26 jewels, operates at a bitting rate of 28800 vph (approximately 4Hz), offers approximately 70 hours power reserve. Crystal: Scratch-resistant sapphire crystal. Crown: Screw-down construction enhancing water resistance and securing the case back components. Case Back: Solid case back typical for Black Bay models, sometimes with rotating bezel functionality or just closed. Shape/Size: Round stainless steel case measuring 41 mm in diameter including lugs (confirm if lug size is specified). Clasp: Fold over clasp equipped with a safety release mechanism, often linked to the Quick Release function. Water Resistance: Rated at 200 meters / 660 feet water depth equivalent, suitable for swimming and diving. Functions: Analog hour, minute, second display combined with chronometer functionality (precise timekeeping). Series/Collection: Tudor Black Bay series watch. Style/Apparel: Luxury sport diving watch style. Origin/Labelling: Watch labelled 'Swiss Made'. Reference Number: Pre-owned Tudor Black Bay Automatic Chronometer Mens Watch 79230N.