The Omega Seamaster GMT series was released in 1998 on the 50th anniversary of the first Seamaster model. Omega had produced many watches in the past with 24-hour sub-dials or 24-hour bezels, but never with the primary purpose of competing with the Rolex GMT-Master. The Seamaster GMT evolved out of the sword-hand generation of Seamaster Pro models released in the late 1990s. By replacing the somewhat complicated skeleton hands and introducing large Seamaster 300 "Big Triangle" style lume plots, legibility was greatly increased, making it an ideal platform for further complications. [..] Visit The Classic Seamaster Pro GMT Family to read the full article.