Omega Speedmaster Replica 57 Stainless Steel 3894.50.00

Omega first showed the design in 1997 as the Speedmaster '57 Replica (3598.50) in its Mission Cases, then made it a regular model from 1998 to 2003: the 3594.50 on a bracelet and this 3894.50 on a leather strap. The 42 mm case is based on the Speedmaster Professional 3570.50, so it wears larger than the 38.6 mm original CK2915. It has an all-steel tachymeter bezel, an applied Omega logo and the manually wound calibre 1861 under an acrylic crystal, and the lugs take a 20 mm strap.

Bracelet aside, the 3594.50.00 is the same watch. The yellow gold version, made in 150 pieces, uses the calibre 1863; the 3193.50.00 is that gold watch on a gold bracelet.