Important Modern & Vintage Timepieces

Geneva, Nov 10, 2013

LOT 238

OMEGA SEAMASTER PLOPROF PROTOTYPE NO. 4 101 Omega, "Seamaster, Automatic", Ref. ST 166.0077. Made in the 1970's. Fine, extremely rare, large, asymmetric, center seconds, self-winding, water resistant, stainless steel professional diver's wristwatch with date and a stainless steel Omega shark bracelet "à petites mailles" with slip-in clasp. Accompanied by a an Omega service receipt dated 24.05.2013 (valid 2 years) and a service pouch.

CHF 25,000 - 35,000

HKD 205,000 - 290,000 / USD 26,500 - 38,000

Sold: CHF 31,250

Two-body, massive, polished and brushed, revolving graduated bezel for decompression times with red security pushbutton at 7 o'clock to lock the bezel, screwed- in and protected winding crown at 9 o'clock, bezel inclined and reeded, flat back with horizontal anti-slip groove pattern, sapphire crystal Matte dark blue with painted luminous baton indexes, outer minute/ seconds divisions, date aperture. Luminous white hour and seconds hand, luminous orange minute hand. Cal. 1000, Copper-colored, 17 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.


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Grading System
Grade:
Case: 2

Very good
Movement: 1

As new
Dial: 1-01

As new

HANDS Original

Notes

THICKNESS 14 mm. Approx overall length 170 mm. Made famous by the Rolex sports models bearing the name Comex, it is however less known that some of the first models tested by Comex as a possible candidate to equip their divers was the Omega Seamaster. Fitted with a large revolving bezel that was held and could be released by pressing the iconic red button. Some of the earliest examples were tested during the expedition Janus II and by the famous commander Jacques- Yves Cousteau. This current example is surely one of the first Ploprof's ever made featuring the engraving on the caseback Prototype 4 101 and further differs from the later models by its dial that only states Seamaster without the words Professional and the DEPTH as found on later models. It is interesting also to note that the dial is the same as found on the never commercialized titanium Ploprof (see Omega a Journey through Time by Marco Richon, page 330). Just serviced by Omega in Bienne and still under warranty, it is the first Omega Ploprof Prototype to have been offered at auction.