The Omega Seamaster 300 was first introduced in 1957, a pivotal year in Omega's history, as the Speedmaster and Railmaster were also presented at the same time. While the 165.024 is usually considered as "the" Seamaster 300, it was in fact launched 7 years later, as the fourth evolution of the model. Its status comes from the introduction of some substantial changes in the design of the Seamaster: the lyra lugs, the larger bezel and protective crown guards. The 165.024 was also issued to British Royal Naval divers, making the watch even more collectible.
This reference can be divided into two main categories: early dials with a smaller cut triangle index at 12 and from 1967, the version known as 'big triangle'. This piece has its correct early dial with pencil hands. The bezel also matches the production date of the watch.