Omega, Speedmaster, Moonwatch, Professional, "CB case", chronograph, ca 1967.

Case size: 42 mm
Material: steel
Movement: manual, caliber 321
Year: circa 1967
Crystal: plastic crystal
Bracelet: original bracelet, folding clasp, ref. 1171/1/633
Reference number: ST 105.012
Serial number: 24'950'536
Case number: 105.012-66 (C.B)

Replaced bezel ring. Newer original bracelet. Service receipt from May 2020, replaced parts from this service are included (hands, crown, crystal, etc.). Wear due to age and use.

A simple function check indicated the movement runs; accuracy, power reserve and long-term performance have not been tested and servicing may be required at the buyer’s expense. Water resistance cannot be guaranteed and should be checked by a qualified watchmaker before any exposure to water. No right of withdrawal applies to live auction purchases.

More information

Omega used two case makers for the 105.012: Huguenin Frères (HF) and La Centrale Boîtes of Biel (CB). The CB cases—seen only on the sub-reference 105.012-66—are identifiable by a subtle extra facet: a fine line between the polishing planes on the tops of the lyre lugs. Many examples lost this detail to polishing, which makes crisp CB cases particularly sought after.

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