Omega Speedmaster '57 homages

The first Speedmaster appeared in 1957. It was made for motor-racing teams and engineers, and it is described as the first watch with a tachymeter scale on the bezel. Its Broad Arrow hands and chronograph layout are the design the Speedmaster '57 name refers to.

The current Speedmaster '57, reference 332.10.41.51.01.001, is a 40.5 mm steel chronograph with a manual-winding Master Chronometer calibre 9906. It has a brushed bezel with a blackened tachymeter scale, small seconds at 9, a 12-hour and 60-minute counter at 3, and a date window at 6. The case is about 13 mm thick, slimmer than the Moonwatch Professional, and has symmetrical straight and pointed lugs.