Vintage Omega Seamaster Automatic DayDate 166.0211 - 36mm - 1978

A Vintage Omega Seamaster Automatic Day-Date, produced in 1978. This watch features a beautiful white dial with a vertically brushed finish and a Day-Date complication at the 3 o’clock position, with the weekdays displayed in English.

The stainless steel case measures 36mm in width and remains with its original polish. Inside is the Omega caliber 1020 automatic movement, which was serviced in March 2026 and now runs and functions excellently.

The watch comes on its original Omega bracelet, reference 1173, suitable for wrist circumferences from 14 up to 19cm, making it suitable for many wrist sizes. The overall condition of this piece is beautiful and it would make for an excellent daily wearer.

 Year of production: 1978

 Serial number: 42.876.348

 Model / Reference number: 166.0211.1

 Case dimensions.

  - Width excluding crown: 36mm

  - Width including crown: 38mm

  - Lug to lug: 39mm

  - Thickness: 11,2mm

 Lugs width: 20mm

 Strap: a Omega bracelet. (Ref. 1173 with nr 717 endlinks) (Fits a 14 to 19cm wrist)

Total weight: 86,1g

 Country of origin: Switzerland 

 Movement: Cal. 1020 Automatic

 Service information: Movement serviced in March 2026. Runs and functions excellently. (~-1s/d, ~289amp, ~0.0ms b/e)

Internal code: BTW 1466