Omega "Automatic Professional Seamaster 600"

, Ref. ST 166.0077, Cal. 1002, 54 x 45 mm, circa 1970

A very rare vintage automatic "cult" wristwatch for professional deep sea divers with centre seconds and date - model "PLOPROF", first series - with box

Case: steel monocoque case, screw-down crown with patented locking nut, bi-directional rotating black bezel locked/unlocked by depressing a red button in the band, solid steel "Omega" bracelet with deployant clasp. Dial: blue. Movm.: rotorwind movement, Glucydur balance.

Seamaster 600 m, so called "PLOPROF" dating from 1970
The "PLOPROF" stands for "PLOngeur PROFessional", which means professional diver. As professional divers began to dive deeper and deeper in the sea, Omega started developing a watch specially designed to withstand very high pressure. At a depth of 250 m, a pressure of 25 kg/cm² is applied to the watch so that the divers could not go deeper than 300 m or risk water getting into the case. After several years of research, the Seamaster 600m Professional - the so-called "Ploprof" - was created. This watch's ultra-resistancy and its exceptional water-tightness lived up to even the high standards of professional divers; the watch was fitted with automatic calibre 1002 and the "Ploprof" was launched in 1970. The first series was marked "600" on the dial, while the second series was marked "600m/2000ft".
Lit.: "Omega" by Marco Richon, Bienne 2007, page 330.
#42045

錶殼非常好, 使用過
錶盤非常好
机蕊非常好, 走動正常, 建議整修