Seamaster

The Omega Seamaster spans neat, understated watches with modest water resistance and purpose-built divers with rotating bezels; the name alone tells you surprisingly little about what’s on the wrist. Introduced in 1948, the family began with watches that look positively dressy beside today’s dive models, making its evolution as interesting as any single reference.

The Seamaster 300, introduced in 1957, established the diving branch, while the Diver 300M arrived in 1993 with scalloped bezel edges, skeleton hands, and a helium-release valve at ten o’clock. Earlier Diver 300M generations include quartz and automatic models in several sizes; later versions brought ceramic bezels, and the 2018 redesign paired ceramic dials with laser-engraved waves. The Planet Ocean, launched in 2005, takes a different approach with broad-arrow hands and 600-metre water resistance.

The Aqua Terra occupies the quieter end of the modern family: no rotating dive bezel, and a cleaner dial beneath the Seamaster name. Across older Seamasters, expect an even wider spread of hand-wound, automatic, and quartz movements, along with case proportions and dial designs that reflect their decades rather than a single house formula.