Vintage Omega Seamaster De Ville Automatic 166.020 - 34,5mm - 1966

This vintage Omega Seamaster De Ville was produced in 1966. The watch features a stainless steel case with a 34.5mm diameter. The dial has a white sunburst effect with light patina speckles visible, The condition overall remains very pleasing and characteristic for its age.

Inside is a caliber 562 automatic movement, which was serviced in March 2026 and now runs and functions excellently. The crown is an original Omega crown, although not original to this specific reference, yet it operates perfectly and could always be replaced with the correct version in the future if desired.

We have paired the watch with a top grain leather strap in brown with a crocodile motif and a light glossy finish, which suits the watch very well. Overall, this piece presents beautifully and would make for a refined vintage dress watch.

 Year of production: 1966

 Serial number: 23.013.728

 Model / Reference number: 166.020

 Case dimensions.

  - Width excluding crown: 34,5mm

  - Width including crown: 35,5mm

  - Lug to lug: 40mm

  - Thickness: 11mm

 Lugs width: 18mm

 Strap: A brown top-grain leather strap with a crocodile motif. (Fits a 12 to 20cm wrist)

Total head-only weight: 29g

 Country of origin: Switzerland 

 Movement: Cal. 562 Automatic

 Service information: Movement serviced in March 2026. Runs and functions excellently. (~+/-0s/d, ~266amp, ~0.1ms b/e)

Internal code: BTW 1472