Omega Speedmaster Replica 57 Yellow Gold 3193.50.00

The '57 was Omega's first attempt at re-editing the first Speedmaster, the CK2915 of 1957. The re-edition uses a 42 mm case with lyre lugs, larger than the 38.6 mm original. This gold version runs on calibre 1863, a more finely finished version of the 1861 in the steel models, and has no sapphire caseback. It takes a 20 mm bracelet or strap.

Apart from the case metal, it matches the steel 3594.50.00 on a bracelet and the steel 3894.50.00 on a leather strap. Its gold sister on a leather strap with a gold folding clasp is the 3693.50.