Silver-tone stainless steel case, fixed silver-tone steel bezel with inlaid blue aluminium insert showing tachymeter markings. Blue dial features silver-tone hands and index hour markers, plus minute markers around the outer rim. Luminescent coating on hands and markers for enhanced visibility in low light conditions. Date display at the 6 o'clock position. Chronograph functions include a central seconds hand and two sub-dials displaying elapsed minutes up to 45 hours and elapsed seconds respectively (small second). Powered by Tudor Calibre MT5813 automatic mechanical movement, featuring column wheel construction based on Breitling B01 design principles. Movement contains 47 jewels and operates at a frequency of 28,800 vph with approximately 70 hours power reserve indicator visible on the dial. Protected by scratch-resistant sapphire crystal glass lens front. Equipped with screw-down crown for secure sealing against water ingress during operation or diving activities; solid case back included. Classic round case shape measures 41 mm in diameter and has a thickness of 14.4 mm. Aluminium bracelet band is blue in color, matching the dial tone, with a width of 22 mm. Secured by fold over clasp equipped with safety release mechanism to prevent accidental opening during water activities or swimming up to its specified depth rating. Water resistant rated at 200 meters / 660 feet, suitable for recreational diving environments under normal conditions but not professional diving without further modifications or updates potentially affecting this performance standard. Additional functions include hour and minute analog display along with a small seconds hand showing elapsed minutes from the chronograph mechanism.
![Tudor [Black Bay] 1148206](https://cdn.lepodium.net/images/000/303/303333-2.jpg)
