Omega Automatic Cal 1020

Case material:

Stainless Steel

Ref: 166.0209


Here we have an Omega Seamaster Day/date automatic with a 35mm stainless steel case and bracelet. This has a brushed silver dial with applied steel hour markers and logo. This has a bordered day/date aperture at 3. The hands are lume filled, and lume dots are present at the end of each hour marker.


The case has a polished bezel and case with a brushed case back.



This comes on a 1970s brick link stainless steel bracelet with a no. 12 clasp and 131 end links. This fits a large wrist and has easily removable links and further adjustment on the clasp.


This watch has tt's original crown which pulls out to first position to set the date, day is set via hands passing midnight. The snap on case back is plain though correct for this reference and should not have the Seamaster logo like most Seamaster models do.


The crystal is a slightly domed original signed Omega one.


Technical Details

This watch uses the Omega automatic cal 1020. 

This has 17 jewels and a 42 hour power reserve

Frequency of 28,800.


Condition Report

Thiims Omega Seamaster has minimal ageing with a clean dial, intact lume and minimal wear to the case. The crystal has been polished and shows very minimal wear. The bracelet has very light wear too though only minimal stretching and no obvious dings or deep scratches. The movement has been recently serviced and keeps excellent time.

Omega Seamaster Day/Date Automatic c. 1979

  • If you are not local to us, we are happy to post your watch to you, fully insured next day delivery at buyers expense (between £8 and £12).

  • While all care is taken to ensure every watch functions perfectly well, occassionally when worn on the wrist they can behave slightly differently. If any issues occur within the 30 days after purchase we are happy to refund or repair the watch hassle free.