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https://www.youtube.com/watch?v=CgT8-e5pxPQ

Compared with link other watches regularly worn by the Mercury Seven astronauts, Scott Carpenter's Breitling Cosmonaute was easy to spot. In this period, Carpenter was the link only Mercury Seven astronaut to wear a chronograph, and at 42.5 millimeters across the link dial, the Breitling was considerably larger than the Accutron Astronaut or the LeCoultre 24-hour watches worn by the other astronauts.

Brand link Audemars PiguetModel Royal Oak Perpetual Calendar OpenworkedReference Number 26585CE.OO.1225CE.01Diameter 41mmThickness 9.9mmCase Material Black ceramic with titanium casebackDial Color TransparentIndexes Applied link rose goldLume Yes on hands and link hour markersWater Resistance 20 metersStrapBracelet Brushed black ceramic bracelet