Vintage Omega Seamaster Cosmic DayDate Automatic 166.036 - 35mm - 1969

A Vintage Omega Seamaster Cosmic, produced in 1969. This day-date model features both the day and date at the 6 o’clock position, with the weekdays displayed in English. The dial has a beautiful dusted effect that comes alive under certain light angles and remains in perfect condition.

The case measures 35 mm excluding the crown and retains most of its original polish. The original plexiglass has a small scratch near the edge at the 4 o’clock position. It is almost invisible during daily wear, but replacement can be arranged if the buyer prefers, we leave that decision up to you.

Inside is the automatic caliber 752 movement, serviced in February 2026, currently running and functioning great. The watch is paired with a brown calf leather strap, which suits the piece very well. Overall condition is very good, making this an excellent daily wearer or elegant dress watch.

 Year of production: 1969

 Serial number: 28.663.945

 Model / Reference number: 166.036

 Case dimensions.

  - Width excluding crown: 35mm

  - Width including crown: 38mm

  - Lug to lug: 38mm

  - Thickness: 11,3mm

 Lugs width: 19mm

 Strap: A tan brown leather strap. (Fits a 12 to 20cm wrist)

Total head-only weight: 39,8g

 Country of origin: Switzerland 

 Movement: Cal. 752 Automatic

 Service information: Movement serviced in February 2026. Runs and functions great. (~+8s/d, ~311amp, ~0.1ms b/e)

Internal code: BTW 1377