Sold Price: Vintage Omega Seamaster 600 PloProf Professional Wrist Watch. Automatic 20 jewel movement, caliber 1002. Circa 1960's model. Stainless steel case with matte blue dial and luminous markers. Red lock release
Why you should hunt down a vintage Omega 'Ploprof' watch | British GQ
Omega - Omega Ploprof "Prototype" Seamaster 600 - SOLD FOR CHF93,750
The legendary Omega Seamaster Ploprof - The Kraken of Diving Watches - Monochrome-Watches
Must Read: The Truth About The Omega Seamaster PloProf