Skip to content

OMEGA Seamaster PloProf 600m automatic divers watch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1972

Maker / issuer

Omega

This stainless steel OMEGA Seamaster PloProf 600m is an automatic wristwatch released by the manufacturer in response to the growing demand for deep-sea diving equipment during the late 1960s.

Produced in 1972, this timepiece, carrying reference 166.077, is powered by the calibre 1002 movement. The watch features a distinctive case measuring 55 x 44mm, incorporating a red button on the upper side which operates the locking mechanism for the bi-directional rotating bezel. The watch is fitted with a Bakelite bezel and a 'Shark Mesh' stainless steel bracelet. The dial is blue with a luminous outer minute track, luminous hour markers, and a date window located at the three o'clock position.

The timepiece is designed to be water-resistant to a depth of over 600 meters and includes a screw-down crown with a locking nut to ensure underwater functionality.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Automatic divers watch
Maker
OMEGA
Model
PloProf
Calibre
1002
Reference
166.077
Case Dimensions
55 x 44mm
Water Resistance
Over 600m
Date of Manufacture
1972
Maker / attribution
OMEGA

Design

Visible features
• Red release button for the rotating bezel • Blue dial with luminous markers • Shark Mesh bracelet • Date window at 3 o'clock position
Dial and Movement
The hour and second hands are of the sword style and are also luminous. A date aperture is positioned at the three o'clock mark. Internally, the watch is powered by the OMEGA calibre 1002 automatic movement. This movement, designed during the period following the model's debut at the 1969 Basel Show, provides the power for the watch's standard timekeeping and date functions.
Case and Bezel Design
The Seamaster PloProf 600m features a unique industrial case design constructed from stainless steel. It measures 55 x 44mm and is built to withstand pressures exceeding depths of 600 meters. A notable functional feature of the case is the inclusion of a red button positioned at the top right, which acts as the release mechanism for the locking, bi-directional rotating bezel. This design allows for the calculation of elapsed time, specifically for underwater air management. The timepiece is further equipped with a screw-down crown that utilizes a locking nut to maintain its water resistance. The bezel insert is composed of Bakelite and features a graduated scale for diving calculations. The watch is presented on a 'Shark Mesh' stainless steel bracelet, which is historically associated with this specific model line.
Historical Context and Nomenclature
The OMEGA Seamaster 600 was developed in response to the late 1960s requirement for specialized equipment for underwater exploration and industrial tasks, such as the maintenance of off-shore oil constructions. The model became available in 1971. The name 'PloProf' is widely used by collectors, derived from the French term 'Plongeur Professionnel'. However, the source indicates that the term is considered a misnomer as the watch was not exclusively designed for professional divers. The name originated from an error found in a reference book but has since been adopted by the market and integrated into OMEGA's modern collections.

Identification

Reference
166.077
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: The exact professional application of the watch is noted as a misnomer due to historical reference book errors.
  • Research required: The source provides no specific details regarding the current working order or service history of the movement.
Can you source one of these? Submit a reference