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Omega Seamaster 600 PloProf ref. 166.0077 watch front

Omega

Seamaster 600 'PloProf'

Why It Matters

Omega's professional deep-sea diver, with prototypes supplied to COMEX for testing. The Seamaster 600 'PloProf' (PLOngeur PROFessionnel) used a monobloc steel case rated to 600 metres, a locking crown, and a red side pusher that unlocked the rotating bezel. Reference 166.0077 (also written 166.077) ran the automatic caliber 1002.

Object Details

Brand
Omega
Family
Ploprof
Model
Seamaster 600 'PloProf'
Reference
166.0077
Production
1971–1979
Case
~55mm x 45mm; red bezel-lock pusher; locking crown
Material
Stainless steel, monobloc case
Movement
Automatic Cal. 1002
Dial
Blue or black dial, luminous markers
Complication
Date
Water Resistance
600m
Provenance
Prototype testing with COMEX, documented in the Omega Passion collector guide

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