Important Collectors' Wristwatches, P...

Geneva, May 08, 2010

LOT 425

omega mark III Omega, "Speedmaster Professional Mark III, Automatic?, Ref. ST 176.0002. Made in the 1970s. Fine and rare, large, self-winding, waterresistant, tonneau-shaped, stainless steel wristwatch with date, round button chronograph, 12-hour register, central minute recorder, tachometer, 24-hours with night/day indication, and a stainless steel link Omega bracelet with deployant clasp.

C. Two-body, ?Pilot-line?, brushed, screwed-down case back with engraved Seamaster logo, hooded lugs. D. Satiné blue with faceted black painted indexes, luminous dots, inner Arabic five minutes, outer minute/fifth second scale, outermost tachometer scale graduated to 500UPH, subsidiary dials for the seconds and the 12-hour register, the 24 hours with night/day indication by means of an arrow on a revolving disc, 60-minute register by means of a orange and black central ?jet? hand, aperture for the date. Luminous white baton hands. M. Cal. 1040, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance spring, micrometer regulator. Dial, case and movement signed. Dim. 40 x 52 mm. Thickness 16 mm. Approx overall length 180 mm.