Omega Seamaster 600 Ploprof 166.077 1978

OMEGA Seamaster 600, Ploprof 166.077 MK3, Original Owner
Serial: 33113283
Circa: 1978
Reference No.: 166.077

CASE: 55x48mm, Monobloc Stainless Steel with Bakelite rotating bi-directional 60min bezel, mineral crystal, bezel unlock red button, screw-down crown.

MOVEMENT: Omega Cal. 1002, self-winding mechanical, 20 jewels

DIAL: Blue dial with tritium luminous hour markers, date window at 3 o'clock, organe tritium luminous “sword” minutes hand.

BRACELET: Vintage stainless steel mesh bracelet Ref. 1247/237 with mesh extension Ref. 1247-1266/01

CONDITION REPORT: Overall excellent and original condition. The case is worn and appears unpolished. Bezel is original with a few scratches. The dial is original in MK3 configuration with original luminous material. Hands are original tritium ones and the orange has slightly faded contrasting with the stunning patina. Red bezel lock pusher is original and shows signs of aging. Movement and quickset date both working properly.
The movement was fully overhauled in October 2024, melted gaskets were cleaned out and replaced and our watchmaker spent weeks painstakingly doing so in order to preserve all parts original.

NOTES: This watch came to us directly from the original French owner, now living in Switzerland, who dove with this watch during the 1980's and 1990's and dove in the Lake of Geneva with it. When we received the watch, it had sat in a drawer for over 25 years. According to the Omega Museum (archive not ordered), the present watch was manufactured May 18, 1977 and delivered to France.

The Omega Seamaster 600 ‘Ploprof’ was launched for the public in 1970, although its case and design had already been patented in 1967. Although some associate COMEX with Rolex, these divers and also Jacques Cousteau were already working with Omega in the early 1960’s. Following rigorous testing by COMEX while using the Seamaster 300 in the mid-1960’s, Omega developed a screw crown for that model, but the needs for higher depth ratings continued and Omega pushed the boundaries with the Seamaster 600 that featured the first 904L (internal name Acier Uranus) monobloc Stainless Steel case, sapphire crystal, unique screw crown and bezel lock mechanism. Ploprof stands for Plongeur Professionel in French meaning Professional Diver. An appropriate name for its ties with Marseilles based French diving company COMEX, which stands for COmpagnie Maritime d’EXpertises, which used the early Ploprof prototypes on one of its first HYDRA projects.

SOLD