Omega Seamaster 300
One of Omega's first watches for professional divers, with a rotating bezel for dive time.
Omega launched the Seamaster 300 in 1957 together with the Speedmaster and the Railmaster. It was built for divers, and the bezel showed how long they had been underwater. British military divers later used the watch.
Materials: Stainless steel, acrylic crystal; self-winding movement
Manufacture: Made in Biel; the case was waterproof with a screw-down crown.
The rotating bezel with a minute scale.
Broad arrow-shaped hands that glow in the dark.