Omega. A rare stainless steel chronograph wristwatch with date, phases of the moon, bracelet and certificate
Omega. A rare stainless steel chronograph wristwatch with date, phases of the moon, bracelet and certificate

SIGNED OMEGA, SPEEDMASTER PROFESSIONAL, MOVEMENT NO. 46878835, REF. ST 345.0809, CIRCA 1985

Details
Omega. A rare stainless steel chronograph wristwatch with date, phases of the moon, bracelet and certificate
Signed Omega, Speedmaster Professional, movement no. 46878835, ref. ST 345.0809, circa 1985
Cal. 866 copper-finished lever movement, 17 jewels, metal dust cover, the black dial with luminous baton numerals, luminous hands, four subsidiary dials indicating phases of the moon combined with date, constant seconds, 30 minutes and 12 hours registers, in tonneau-shaped water-resistant-type case with screw back centred by Speedmaster logo, tachymetre scale to the black bezel, unusual moulded lugs, two round chronograph buttons in the band, stainless steel Omega link bracelet and deployant clasp, case, dial and movement signed
42 mm. wide

Lot Essay

Accompanied by Omega International Guarantee dated 9 September 1988, instruction booklet and fitted presentation box.

The Speedmaster Professional Moonphase model was launched in 1985, using the new Lemania calibre 866 with calendar indication combined with moonphase to 12 o'clock. It was in production only in 1985 and according to the archives of the Omega Museum, a total of 1'738 examples of calibre 866 were made, out of which 1300 examples were used for the present model, reference ST 345.0809.

The same year Omega commemorated the 20th anniversary of a Speedmaster wristwatch worn by NASA's astronauts Virgil Grissom and John Young on Gemini 3 on 23 March 1965.

For an illustration and description of the Speedmaster Professional Moonphase model see Omega Saga by Marco Richon, pp. 391 & 392.

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