Omega Speedmaster 3590.50 (1993) Rolex Datejust 1600 steel Omega pin to change

steel Omega pin to change the straps

The new caliber is smaller and thinner than the MT5602 caliber used in the larger Black Bay models

- 34 mm case with sharp lugs

37 x 35 mm

Omega Speedmaster 3590.50 (1993) Rolex Datejust 1600 steel Omega pin to changeOmega Speedmaster Professional 3590. 50 (1993) The Omega Speedmaster was introduced in 1957. This model was used as a tool watch in the racing world. For example, the Speedmaster has a chronograph function. The Speedmaster is known for the model used by NASA as the first watch on the moon. NASA wanted to provide astronauts with a durable timepiece and Omega passed all the rigorous tests conducted between 1964 and 1965. Omega was officially certified