Vintage Omega Constellation Automatic Chronometer Ultra thin 167.021 - 33mm - 1966 MINT

This vintage Omega Constellation chronometer was produced in 1966 and is preserved in exceptional so called “Mint” condition. The watch is completely free from any signs of wear apart from 2 minor scratches on the under side of the lugs, with no scratches or marks on any other parts of the case, dial or glass.

Inside is the caliber 712 automatic chronometer movement, an evolution of the 500 series. Notable for its accuracy and thin profile, it rightfully grants this watch the distinction of being an Ultra Thin.

The case retains its original factory polish, untouched since production. To ensure reliability, the movement was serviced in September 2025 and currently runs and functions perfectly. It is paired with a Grade 3 calf leather strap, brown with a crocodile gray motif and a light glossy finish.

This Omega Constellation should be regarded either as a collector’s item or an elegant dress watch—with its most important quality being that it remains truly in almost NOS / Unworn conditions.

 Year of production: 1966

 Serial number: 23.644.667

 Model number: 167.021

 Case dimensions.

  - Width excluding crown: 33mm

  - Width including crown: 35mm

  - Lug to lug: 39,5mm

  - Thickness: 8,1mm

 Lugs width: 19mm

 Strap: A grade III brown calf leather strap with crocodile grain and light glossy finish. (Fits a 12 to 20cm wrist)

Total head-only weight: 27,0g

 Country of origin: Switzerland 

 Movement: Cal. 712 Automatic

 Service information: Movement serviced in September 2025. Runs and functions perfectly. (~+/-0s/d, ~305amp, ~0.0ms b/e)

Internal code: BTW 1152