Important Collectors' Watches, Pocket...

Geneva, Mar 16, 2008

LOT 371

Seamaster 600m - 1st Generation - Ploprof Omega, ?Seamaster, Professional, Automatic, 600?, Ref. ST 166.077. Made circa 1973. Fine and rare, large, asymmetric, center seconds, self-winding, water-resistant, stainless steel professional diver?s wristwatch with date.

CHF 8,000 - 10,000

USD 7,200 - 9,000 / EUR 5,000 - 6,200

Sold: CHF 10,800

C. Two-body, massive, polished and brushed, revolving graduated bezel for the decompression times with red security pushbutton at 2 to lock the bezel, hooded lugs, screwed-in and protected winding crown at 9, inclined and reeded bezel, flat case back with horizontal anti-slip groove pattern, sapphire crystal. D. Matte black with painted luminous baton indexes, outer minute/seconds divisions, date aperture. Luminous white hour and seconds hand, luminous orange minute hand. M. Cal. 1002, copper-colored, 20 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring. Dial, case and movement signed. Dim. 45 mm x 55 mm. Thickness 14 mm.


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Grading System
Grade: AA

Very good
Case: 3-26

Good

Upgraded
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-6-34-02

Good

Slightly oxidized

Restored by the manufacture

HANDS Service hands

Notes

Ref. 166.0077 Production of this reference began in 1970. While other companies worked with helium escape valves, to solve the problem of the crystal ?popping? during decompression due to helium absorption, Omega preferred to create an impenetrable case. They succeeded in creating a vacuum within the case such that, it would take one thousand years - at normal atmospheric pressure - for air to again penetrate the case. One of these watches was tested in a pressure chamber, where it continued to function until 137 atmospheres, the equivalent of 1370 meters of depth.