Omega, Ref. 2520. Produced in the 1950's.Fine, 18K pink gold gentleman's wristwatch.

C. three-body, solid, polished. D. black with applied pink gold "bâton"indexes, auxiliary seconds dial. "Dauphine" pink gold hands. M. Cal. 267,copper-colored, 15 jewels, straight line lever escapement, shock-absorber,blued steel Breguet balance-spring.Dial, case and movement signed.Diam. 37 mm.

Omega, ?Automatic Chronometer, Officially Certified?. Produced in the 1950?s. Fine, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman?s wristwatch.

C. three-body, solid, polished, screw down case back, hooded lugs. D.off-white textured with applied yellow gold indexes and Arabic numerals. ?Dauphine? radium-coated yellow gold hands. M. Cal. 354, copper colored, 17 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Diam. 34 mm.

Omega, Automatic, Ref. 2617. Produced in the 1950's. Fine, self-winding, 18K pink gold gentleman's wristwatch.

C. three-body, solid, polished, concave lugs. D. matte silver with applied pink gold dart indexes, auxiliary seconds dial. "Dauphine" pink gold hands. M. Cal. 332, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Diam. 34 mm.

Omega, Automatic, Chronomètre. Produced in the 1950?s.Fine, round, self-winding, 18K yellow gold gentleman's wristwatch.

C. two-body, solid, polished, flat bezel, concave lugs. D. two-tone gold with applied yellow gold lozenge and triangular indexes and Arabic numerals, auxiliary seconds dial. "Dauphine" yellow gold hands. M. 13 ''', copper colored, 17 jewels, lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring, bumper rotor.Dial, case and movement signed.Diam. 35 mm.

Omega, "Seamaster XVI, Automatic", Ref. 2850S.C. Produced especially for the 16th Olympic Games in Melbourne, Australia in 1956. Fine and rare, center-seconds, self-winding, water-resistant, 18K pink gold gentleman's wristwatch.

C. two-body, solid, polished, case back embossed with the 16th Olympics logo and engraved "Seamaster XVI", lapidated concave lugs. D. beige with applied faceted pink gold indexes and a pink gold "XVI", "Dauphine" pink gold hands. M. Cal. 471, copper-colored, 20 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed. Diam. 34 mm.

Omega, "Seamaster", Automatic, No. 22744111. Produced in the 1960's. Fine, center-seconds, self-winding, 18K yellow gold gentleman's wristwatch with date.

C. two-body, solid, polished, screwed down case back with embossed logo, concave lugs. D. satiné silver with applied yellow gold faceted indexes, aperture for the date. "Bâton" yellow gold hands. M. Cal. 562, copper-colored, 24 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed. Diam. 34 mm.

Omega, "Constellation", ?Automatic Chronometer Officially Certified?, Produced in the 1960's. Fine, center-seconds, self-winding, water-resistant, 18K white gold gentleman's wristwatch with day and date and an 18K white gold extensible Omega bracelet.

C. two-body, solid, polished and brushed, screwed-down case back with embossed logo. D. matte silver with applied white gold and black bâton indexes, aperture for the day and the date. ?Baton? white gold hands. M. Cal. 751, copper-colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Diam. 36 mm.

Omega, ?Constellation?, ?Automatic, Chronometer Officially Certified?. Produced in the 1950?s. Fine, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman?s wristwatch with an 18K yellow gold Omega buckle.

C. two-body, solid, polished and brushed, case back with embossed medallion representing an Observatory and the constellations, concave lugs. D. two-tone silver with applied faceted gold bâton indexes. ?Dauphine? yellow gold hands. M. Cal. 551,copper-colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator. Dial, case and movement signed.Diam. 34 mm.

Omega, "Constellation", ?Automatic Chronometer Officially Certified?, Ref. 2700 SC. Produced in the 1950's. Fine, center-seconds, self-winding, 18K pink gold gentleman's wristwatch with a gold filled Omega buckle.

C. three-body, solid, polished, case back with embossed logo, concave lugs. D. two tone gold with applied pink gold fancy faceted indexes. "Dauphine" pink gold hands. M. Cal. 354, copper-colored, 17 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Diam. 35 mm.

Omega, "Constellation", ?Automatic Chronometer Officially Certified?, Produced in the 1960's. Fine, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with date.

C. two-body, solid, polished, screwed-down case back with logo, hooded lugs. D. two-tone gold with applied yellow gold and black indexes on a faceted outer plain reserve, aperture for the date. "Dauphine" yellow gold and black hands. M. Cal. 561, copper-colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case, and movement signed.Diam. 34 mm.

Omega, Automatic Chronometer, Officially Certified, "Constellation de Luxe", Ref. 14381/2. Production of this model started in 1952.Very fine, round, center-seconds, self-winding, water-resistant, 18K pink gold gentleman's wristwatch.

C. three body, solid, polished, screwed-down case back with embossed logo, concave lapidated lugs. D. copper colored with applied pink gold dart indexes. "Dauphine" pink gold hands. M. Cal. 551, copper colored, 24 jewels, straight line lever escapement , monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed. Diam. 34 mm.

Omega, "Constellation", Automatic, Chronométre Officially Certified. Produced in the 1960's. Fine, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with date.

C. two body, polished and brushed, screwed-down case back with logo, extended lugs. D. champagne with applied yellow gold and black bâton indexes on a faceted plain outer reserve, aperture for the date. "Dauphine" yellow gold and black hands. M. Cal. 561, copper-colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber,self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Diam. 35 mm.

Omega, "Constellation", Automatic, Officially Certified Chronometer.Produced in the 1960's. Fine, center-seconds, self-winding, water-resistant, 18K pink gold gentleman's wristwatch with date.

C. two-body, solid, polished, screwed-down case back embossed with "Constellation" logo, faceted concave lugs. D. pink gold colored with applied pink gold and black indexes on a faceted plain outer reserve, aperture for the date. "Dauphine" pink gold and black hands. M. Cal. 561, copper-colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions and temperature, shock-absorber, self-compensating flat balance spring, micrometer regulator.Dial, case, and movement signed.Diam. 34 mm.

Omega, "Constellation", Automatic, Chronometer, Officially Certified.Produced in the 1960's.Fine, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with day and date.

C. two body, solid, polished, screwed-down case back with embossed logo, stepped bezel. D. satiné silver with applied yellow gold and black bâton indexes, aperture for the day and the date. "Bâton" yellow gold hands. M. Cal. 751, copper colored, 24 jewels, straight line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed. Diam. 35 mm.

Omega "Chronostop", Ref. 146.010. Produced circa 1969. Fine and unusual, tonneau-shaped, water-resistant, stainless steel gentleman's wristwatch with round button chronograph and date, 12 o'clock at the winding crown position.

C. two-body, polished and brushed, screwed-down case back, hooded lugs. D. gray with applied bâton indexes and tritium-coated outer dots, 60 seconds register by means of an orange central hand, aperture for the date. "Bâton" tritium-coated white hands. M. Cal. 920, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed. Dim. 35 x 40 mm.

Omega "Seamaster", No. 32202321, Produced in the 1970's. Fine, tonneau-shaped, water-resistant, stainless steel gentleman's wristwatch with round button chronograph, registers and tachometer .

C. two-body, polished, screwed-down case back with logo, lapidated sides. D. black with tritium-coated square indexes on a blue reserve, sunk auxiliary dials for the seconds, the 12 hour and 30 minute registers in red, outer tachometer graduation on a white reserve. "Bâton" tritium-coated white hands. M. Cal. 861, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring. Dial, case and movement signed.Dim. 44 X 51 mm.

Omega "Flightmaster". Production of this model started in 1971. Fine, tonneau-shaped, two-time zone, water-resistant, stainless steel aviator's wristwatch with four hands and three crowns, round button chronograph, registers, tachometer and an Omega stainless steel bracelet.

C. two-body, polished and brushed, screwed-down case back, overlapping hooded lugs, outer revolving ring for the 60 minutes. The crown at 3 is for setting the time, the one between 8 and 9 is for the revolving minute ring, the one between 10 and 11 is for the second timezone. D. black with tritium-coated indexes, auxiliary dials for the seconds, the 12 hour and 30 minute registers, outer revolving ring for the 60 minutes. "Bâton" tritium-coated white hands for the time, "Flèche" orange hand for the chronograph and tritium-coated blue hand for the second timezone (GMT hand). M. Cal. 911, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Dim. 43 x 52 mm.Approx. overall length: 180 mm.

Omega, "Automatic Seamaster", No. 39201523. Produced in the 1970's. Fine, tonneau-shaped, self-winding, water-resistant, stainless steel diver's wristwatch with round button chronograph, registers, day and date, 24-hour night/day indication and tachometer.

C. two-body, polished and brushed, screwed-down case back with logo. D. black with tritium-coated indexes, auxiliary dials for the seconds and the 12 hour registers, the 24 hours with night/day indication on the 12, 60 minute register by means of a fourth cross-shaped central hand, outer tachometer graduation on a black reserve, apertures for the day and date. "Bâton" tritium-coated white hands. M. Cal. 1045, copper-colored, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Dim. 42 x 46 mm.Approx. overall length: 185 mm.

Omega, "Speedmaster Professional", No. 26542741, case No. 145012, circa 1968. Production of the Speedmaster started in 1957.Fine, round, water-resistant, stainless steel gentleman's wristwatch with round button chronograph and registers.

C. three-body, polished and brushed, screwed-down case back engraved with the Speedmaster logo, anti-magnetic protecting cap, tachometer graduation on the bezel, stylized lapidated lugs. D. black with tritium-coated indexes, auxiliary dials for the seconds, the 12 hour and 30 minute registers."Bâton" tritium-coated hands.M.Cal. 321,gilt brass, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Diam. 42 mm.

Omega, "Speedmaster Professional". Production of the Speedmaster started in 1957.Fine, round, water-resistant, stainless steel gentleman's wristwatch with round button chronograph, registers and tachometer and a stainless steel Omega bracelet.

C. three-body, polished and brushed, screwed-down case back, anti-magnetic protecting shield, tachometer graduation on the bezel, stylized lapidated lugs. Engraved on the back: "Flight qualified by NASA for all manned space missions - The first watch worn on the moon", and the Speedmaster logo.D. black with tritium-coated indexes, auxiliary dials for the seconds, the 12 hour and 30 minute registers. "Skeleton" tritium-coated hands. M. Cal. 861, copper-colored, 17 jewels, lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Diam. 42 mm.