A cornerstone of Omega’s legendary 1957 Trilogy, the Seamaster 300 is an icon of dive watch design — a model that evolved continuously throughout a decade. From the CK to the ST series, its rich history and countless variations make it one of the most fascinating and collectible watches of its era.
The upcoming release of the Seamaster Only book will shine a renewed light on this historic model, restoring its well-deserved prestige and bringing it back to the forefront of collectors’ attention.

In 1965, the Seamaster 300 took on a more “professional” identity, adopting the famous lyre lugs also seen on the Speedmaster.
The main highlight of this evolution is its new luminous bezel — commonly called bakelite — which became the defining feature of this generation.
On this example, the bezel remains in perfect condition, the tritium has developed a warm and even patina that contrasts beautifully with the white sub-indexes. It rotates both ways and still clicks perfectly, just like it did on day one.
This particular model features straight hands, which would later evolve into a sword-shaped hour hand. The overall patina is among the most attractive and harmonious. A truly rare and distinctive example of the Seamaster 300 lineage.

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