OMEGA Speedmaster O31030405006001 Watch for Men nn2578sm01 75 mmButterfly clasp with a

75 mmButterfly clasp with a push button release

but in an even slimmer profile

geometric indices and a unidirectional rotating topring

Black dial with silver-tone hands and index hour markers

OMEGA Speedmaster O31030405006001 Watch for Men nn2578sm01 75 mmButterfly clasp with aOn October 3rd, 1962, the Speedmaster CK 2998 became the first OMEGA worn in space, when the astronaut Walter Schirra wore his personal model on the Sigma 7 mission of the Mercury programme. This updated version is a tribute to that pioneering timepiece and captures the same 2nd generation Speedmaster style in modern form. The 39. 70 mm case is crafted in polished and brushed stainless steel and features a flat links bracelet with OMEGAs patented