Omega Seamaster Automatic Ref. 166.0266 (1982) – Rare German Day-Date Version with Original Box

The Omega Seamaster Automatic Reference 166.0266 from 1982 is an exceptional vintage model with a particularly sought-after feature. The combination of an elegant white-silver dial, German day display, automatic movement, and original Omega presentation box makes this piece a rare and extremely attractive collector's watch.

This piece was freshly serviced in July 2026 and impresses with excellent technical values. The movement has been fully checked, regulated, and runs with impressive precision. All functions work perfectly.

Case & Design

The stainless steel case with a 34 mm diameter is in mint condition and presents exceptionally well. The classic Seamaster case shape of the early 1980s combines sporty elegance with timeless everyday suitability.

The professionally refurbished surface emphasizes the clean lines of this reference while retaining its characteristic vintage charm.

Dial & Day Display

The highlight of this Seamaster is the elegant white-silver dial with a German day-date display.

This version is particularly sought after by collectors, as models with a German-language day display are significantly rarer than international variants. The dial is in very good condition and gives the watch a classic, understated elegance.

Movement

Inside works the reliable Omega Calibre 1020, a robust automatic movement with day and date function.

The measured values:

• Rate deviation: –4 seconds per day
• Amplitude: 281°
• Beat error: 0.0 ms
• Power reserve: approx. 42 hours

The movement has been fully serviced:

• Cleaned
• Oiled
• Regulated
• Professionally checked

The watch runs technically excellent and all functions work flawlessly.

Glass & Bracelet

The watch features its original glass and is visually in excellent condition.

The stainless steel bracelet has been expertly refurbished:

• Satin-finished areas professionally reworked
• Original character preserved

The bracelet is in mint condition and perfectly complements the watch.

Work Performed

The following work was carried out in July 2026:

• Movement cleaned and oiled
• Movement regulated
• Professionally cleaned and inspected
• Case high-polished
• Case professionally refurbished
• Bezel high-polished
• Bracelet refurbished in the satin-finished areas
• New glass installed

Scope of Delivery

The scope of delivery includes:

• The watch
• Original Omega box
• In-house certificate of authenticity

Conclusion

The Omega Seamaster Automatic Ref. 166.0266 is an exceptionally attractive vintage watch with a rare German day-date display and excellent originality. The combination of fresh service, excellent rate values, original box, mint condition, and the rare language variant makes this model a special highlight for Omega collectors.

An elegant and rare Seamaster that combines classic 1980s aesthetics with reliable Swiss watchmaking. A true collector's item with a lot of character and long-term enjoyment on the wrist.