Model family · Omega
Seamaster
303 references315 variants1940–2005
Omega's oldest line still in production, introduced in 1948 for the company's centenary as a robust, water-resistant everyday watch. From 1957 the name also covers Omega's professional dive watches: the Seamaster 300, the PloProf and, from 1993, the Seamaster Professional 300M.
Family timeline
All recorded years
19402010
303 references in production order. Overlapping bars show overlapping recorded dates.
19401958197519932010
Dates are those recorded in the catalog. Faint bars mark approximate dates; a dashed point marks a single known endpoint. Undated references remain visible. Chronological order does not establish a predecessor or successor relationship.