Movement: automatic, self-winding chronograph with column wheel mechanism, free sprung-balance and Co-Axial escapement for greater precision and durability. 2nd time zone through 24 hour hand. 12 hour and 30 minute totalizers, start/stop push button, return-to-zero push button. Rhodium plated finish and gold plated engravings. Officially certified chronometer.
Case: steel, 42 mm, white dial, scratch resistant sapphire glass
Power Reserve: 52 hours
Bracelet: Comes with steel braclet and an aditional leather band with folding clasp (deployante).
Water resistance: 1000 m
Box, papers: yes
Overview: Launched in 1957 and designed to measure speed with chronograph and tachymeter functions, the Speedmaster has proved time and time again an invaluable and life saving partner to pilots, astronauts and explorers as they defy boundaries and push to ever-higher limits in the exploration of the universe. With an impressive track record of 11 NASA tests and 6 Moon landings, the Speedmaster has been on every US manned space flight and is currently on board Russia’s ISS International Space Station making this manual-winding timepiece a cornerstone of horological and space history.