Omega Genève Automatic Blue Dial German Day-Date 1975 – Ref. 166.0174

The Omega Genève Ref. 166.0174 from 1975 is a particularly interesting vintage model for lovers of rare Omega variants. Equipped with a distinctive blue dial and the extremely rare German Day-Date display, this is a version for the German market.

The watch was freshly serviced in August 2026 and boasts excellent timekeeping values. The Omega Caliber 1022 runs with an impressive 0 seconds deviation per day, an amplitude of 251°, and a beat error of only 0.2 ms.

Rare German Day-Date Version

The Genève Ref. 166.0174 is particularly characterized by its rare German Day-Date display. While many international models can be found with English or other language variants, the German weekday display makes this version particularly interesting for collectors.

The model dates from 1975 and represents a characteristic phase of the Omega Genève collection, in which practical date and weekday displays were combined with an elegant vintage design.

Blue Dial with Beautiful Patina

The blue dial is one of the most striking features of this Genève. Over the decades, the indices have developed a slight patina, which gives the dial an authentic and individual vintage character.

It is precisely this age-related change that makes the watch particularly interesting. Instead of a completely flawless appearance, the dial conveys the history and age of this over 50-year-old timepiece.

The dial is in very good condition overall.

Stainless Steel Case in Mint Condition

The 35 mm stainless steel case is presented in mint condition. As part of the professional refurbishment, the case was professionally refinished and the bezel polished to a high shine.

The acrylic crystal has been replaced with a new crystal and is in like-new condition.

As is common with this vintage watch, no water resistance is guaranteed and this has not been tested.

Omega Caliber 1022 – Excellent Timekeeping Values

Inside, the proven Omega Caliber 1022 is at work. The automatic movement has a manufacturer-specified power reserve of approximately 42 hours.

In August 2026, the movement was freshly serviced, cleaned, oiled, and then precisely regulated.

The measurement results are extremely impressive: the movement runs with 0 seconds deviation per day, reaches an amplitude of 251° and has a beat error of only 0.2 ms.

This shows the over 50-year-old movement's exceptionally good technical performance.

Professional Refurbishment

The Omega Genève has been comprehensively professionally cleaned and checked. The movement has been cleaned, oiled and regulated.

The case has been professionally refinished and the bezel polished to a high shine. The bracelet has been professionally refurbished in the satinized areas.

In addition, a new acrylic crystal has been installed.

Condition of the Omega Genève Ref. 166.0174

The watch is in very good to excellent condition overall. The case and bezel are rated as mint, while the crystal is in new condition.

The timekeeping values are very good, as is the technical condition of the movement. The stainless steel bracelet and case back are also in very good condition.

The blue dial is rated as very good and shows a characteristic age-related patina on the indices.

Technical Data

Brand: Omega
Model: Genève Automatic Blue Dial German Day-Date
Reference: 166.0174
Year of Manufacture: 1975
Dial: Blue
Display: German Day-Date
Case: Stainless Steel
Diameter: 35 mm
Lug Width: 9 mm
Weight: 80 g
Crystal: Acrylic crystal
Strap Length: 20 cm
Movement: Omega Caliber 1022
Winding: Automatic
Power Reserve: approx. 42 hours
Rate Deviation: 0 s/d
Amplitude: 251°
Beat Error: 0.2 ms
Water Resistance: No guarantee / not tested
Internal Number: 10859

Work Performed

The Omega Caliber 1022 was freshly serviced, cleaned, oiled, and regulated in August 2026.

The watch has been professionally cleaned and checked. The case has been professionally refurbished and the bezel polished to a high shine.

The satinized areas of the stainless steel bracelet have been refinished and a new acrylic crystal has been installed.

Scope of Delivery

The scope of delivery includes the Omega Genève Ref. 166.0174, a transport box, and an in-house certificate of authenticity.

Conclusion

The Omega Genève Ref. 166.0174 from 1975 is a particularly interesting vintage Omega, which impresses with its combination of a blue dial, rare German Day-Date display, and excellent technical values.

Particularly noteworthy are the 0 seconds deviation per day, 251° amplitude, and only 0.2 ms beat error after the service in August 2026.

The slight patina on the indices gives the blue dial additional character and makes each piece individual. For collectors specifically looking for rare German Omega Day-Date models, this Genève is an extremely interesting choice.