There is something about the early vintage Omega Seamsters that truly embodies the golden era of dive watches of the 1960s-1970s. Omega has a long history and heritage in dive watches, which dates back to the 1930s. The Seamaster 600 aka Ploprof is unquestionably the most recognizable watch ever produced by Omega. Ploprof stands for 'Plongeur Professionnel' which means professional diver and relates to the type of watch more than the watch model itself but the name has since stuck. 

Like most tool watches from the golden era of watch design the watch's design itself hails from the watch needing to function while also having form and ergonomics. In the late 1960s deep-sea underwater exploration, and off-shore oil drilling saw an increase in demand. This increased the deep-sea diving applications that support the research, military, and commercial markets and, of course, increased the demand for heavy-duty submersible watches. The Ploprof was designed to meet the demands of the sub-aqua business and was put forth as a prototype along with the rare and also highly sought-after Omega Seamaster 1000 to the most significant marine contractors and research companies. COMEX of course was one of the companies that demanded such an intense piece of equipment. 

So the need for a strong, waterproof, clear, reliable, and high-depth rated watch caused the development of several watches and created the unmistakable Seamaster 600. Omega unveiled the Omega Seamaster 600 ref. 166.077 "PloProf" at the 1969 Basel Show but interestingly the watch wasn't issued for retail sale until April 1971. Since then there have been many versions of the Ploprof to have come from the Omega making the design iconic, and now a mainstay offering from the Omega Brand.

CASE & BRACELET

The case retains the factory geometry and dimensions while exhibiting honest wear throughout. The locking crown and nut work perfectly and the watch retains its original red bezel locking push button. The original Omega Mk II bezel remains in excellent condition with expected wear from use and no cracks or degradation. The mineral glass crystal is free from major scratches or wear. The Omega 1162 bracelet with 162 end pieces retains 23 links that show light stretch and will fit up to an 8-inch wrist. The original metallic date wheel also remains with the watch.

DIAL & HANDS

The original matte blue "Mk V" dial is in virtually flawless condition, showing no damage or notable elements of age. The tritium lume on the dial and hands perfectly matches with a subtle green color which is common for Omega dials in this era. Under UV light inspection there is no degradation present in the dial and hands. The orange paint of the minute hand has faded to a pale orange from age.

ACCESSORIES 

None. The watch was recently serviced and is keeping time perfectly, backed by a 1-year warranty on accurate timekeeping.