The Omega Seamaster Diver 300M reference 212.30.41.20.01.003 represents one of the final and most refined evolutions of the pre-ceramic Seamaster era—a generation that helped define modern Omega design. Now discontinued and replaced by ceramic-dial versions, this model stands as a closing, highly collected chapter of a nostalgically regarded period of the Diver 300M line.
Housed in a classic 41mm stainless steel case with the signature scalloped bezel, the watch features a matte aluminium bezel insert. This detail gives the watch a softer, more traditional aesthetic compared to the sharper sheen of ceramic, and allows for the development of a unique patina over time. The professional identity is reinforced by the functional helium escape valve at 10 o’clock.
Crucially, the black dial is characterized by its smooth, clean lacquer finish, deliberately omitting the iconic wave motif. This choice results in a highly legible and uncluttered aesthetic, appealing to those who prefer a more traditional, symmetrical tool-watch look. The dial features applied hour markers filled with bright Super-LumiNova, and skeletonized hands, with a practical date window at 3 o’clock. Paired with the distinctive Seamaster five-link bracelet, the watch wears comfortably and confidently.
Inside the watch is the historically significant Omega Calibre 2500, one of the early generations of Omega’s revolutionary Co-Axial movements. Based on the ETA 2892 but heavily modified, the Calibre 2500 introduced George Daniels’ groundbreaking Co-Axial escapement into mainstream production, offering improved efficiency and reliable chronometer-certified accuracy. For collectors who value the character of earlier Omega designs and the mechanical innovation that ushered in the modern era, this reference represents a refined and well-loved version of a modern dive-watch icon.
