Omega - De Ville - No reserve price - 166.0134 - Men - 1970-1979

# Omega De Ville 166.0134 – 36 mm – Automatic – Silver-Colored Dial – Vintage 1970s – Leather Strap

A classic vintage Omega De Ville Automatic, reference 166.0134, featuring a 36 mm stainless steel case, a silver-colored brushed dial, and an automatic mechanical movement.

This elegant Omega watch likely dates from the early 1970s and represents the understated design of the De Ville collection from this period.

The dial features applied baton hour markers, slender hands, a date window at 3 o’clock with a magnifier, and the characteristic OMEGA AUTOMATIC and DE VILLE inscriptions.

The watch is fitted with a replacement black leather strap with crocodile embossing and a polished buckle bearing an Omega emblem.

Important information about its vintage condition: The silver-colored dial shows visible age-related patina, including scattered spots, small marks, and discoloration. These features are documented in the detailed photos and should be considered part of the watch’s vintage condition.

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## General Information

Brand: Omega
Collection: De Ville
Reference: 166.0134
Estimated year of manufacture: Circa 1972 (early 1970s; exact year not confirmed)
Case diameter: 36 mm (excluding crown)
Case material: Stainless steel
Movement: Automatic mechanical
Caliber according to model specifications: Omega 1012
Jewels: 23
Frequency: 28,800 vibrations per hour
Power reserve: Approximately 42 hours (commonly quoted specification; not tested separately)
Functions: Hours, minutes, central seconds hand, and date
Dial: Silver-colored, brushed finish with visible vintage patina
Hour markers: Applied baton indices
Crystal: Acrylic / Plexiglas with date magnifier
Bezel: Polished stainless steel
Caseback: Closed, stainless steel
Crown: Featuring the Omega logo
Watch strap: Replacement black leather strap
Buckle: Polished buckle with Omega emblem
Original water resistance: 3 ATM / 30 meters
Current water resistance: Not tested or guaranteed
Origin: Swiss Made

The official Omega archives identify reference 166.0134 as a 36 mm stainless steel De Ville from the 1972 collection, originally equipped with the automatic Omega caliber 1012.

The exact year of manufacture of this particular example has not been verified.

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## Estimated Year of Manufacture

Estimated year of manufacture: Circa 1972

According to Omega’s official vintage archives, reference 166.0134 was part of the 1972 international collection.

The design, case construction, dial configuration, and automatic movement specifications correspond to Omega De Ville models produced in the early 1970s.

The movement’s individual serial number is not recorded in the available photos.

As a result, the exact year of manufacture cannot be independently confirmed.

The year 1972 should therefore be considered an indication of the period in which this model was produced, rather than a verified year of manufacture for this specific watch.

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## Silver-Colored Brushed Dial

The watch features a classic silver-colored dial with a subtle vertical brushed finish.

This style is characteristic of elegant Omega watches from the early 1970s and gives the watch a refined, understated appearance.

The silver-colored surface reflects light subtly, revealing different shades depending on the viewing angle.

Applied metal baton hour markers are positioned around the dial.

These indices feature dark central accents, creating contrast against the light dial.

The Omega symbol appears in the upper part of the dial, with the following inscriptions beneath it:

OMEGA
AUTOMATIC

The lower part bears the DE VILLE designation.

The dial also features a fine minute track along the outer edge and a framed date window at the 3 o’clock position.

The date display is magnified by a characteristic magnifier integrated into the crystal.

The centrally positioned hour and minute hands have a slender metal profile with dark central sections.

A fine central seconds hand completes the traditional three-hand configuration.

### Dial Condition

The dial shows clear signs of age consistent with a vintage watch from the 1970s.

Small spots, surface marks, and localized discoloration are visible across the silver-colored finish.

These imperfections are particularly clear in the detailed photos.

The hands also show some age-related wear and surface discoloration.

The Omega logo and the AUTOMATIC and DE VILLE inscriptions remain clearly legible.

The applied hour markers are present and retain their characteristic appearance.

The dial is not described as restored or refinished. Its originality has not been independently verified.

Please carefully examine the detailed dial photos. They clearly show the existing patina and the overall vintage condition.

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## Stainless Steel Case

The Omega De Ville reference 166.0134 has a traditional round stainless steel case with a diameter of 36 mm, excluding the crown.

This case size reflects the classic proportions of elegant men’s watches from the early 1970s.

The design features a smooth, polished bezel, subtly shaped lugs, and clean case lines.

Its relatively modest dimensions give the watch a refined appearance, suitable for both formal occasions and everyday wear.

The polished case surfaces provide an attractive contrast with the brushed silver-colored dial.

### Case Condition

The stainless steel case is in attractive vintage used condition.

Normal signs of wear are visible, including superficial scratches and fine hairlines.

The polished bezel and case sides retain their bright, reflective appearance.

A few small surface marks are visible upon close inspection.

The lugs retain their recognizable shape, and no clear major structural damage is visible in the available photos.

It is not known whether, or to what extent, the case has been polished in the past.

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## Acrylic Crystal and Date Magnifier

The watch is fitted with a slightly domed acrylic crystal with an integrated magnifying section above the date window.

This type of crystal is characteristic of many vintage Omega watches from this period.

The date magnifier enlarges the date numeral at the 3 o’clock position.

Depending on the viewing angle, the raised magnifying section may cause optical distortion and reflections.

The crystal appears intact in the photos.

Given the watch’s age and previous use, minor surface wear and small marks may be present.

No clear major cracks are visible.

The originality of the fitted crystal has not been independently verified.

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## Crown with Omega Logo

The watch is fitted with a crown at the 3 o’clock position, featuring the Omega logo.

The crown has a ridged edge for winding and setting the watch.

An Omega emblem is visible on its outer face.

The polished finish complements the stainless steel case.

Minor surface wear consistent with normal use is visible in the photos.

The exact originality of the crown and the condition of the internal seals have not been independently checked.

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## Automatic Movement – Omega Caliber 1012

According to Omega’s official reference specifications, the De Ville 166.0134 was originally equipped with the automatic mechanical Omega caliber 1012.

Omega 1012 belongs to the family of automatic movements developed by the brand in the early 1970s.

The movement features an automatic winding mechanism, a central seconds hand, and a date display.

The movement has a frequency of 28,800 vibrations per hour, equivalent to 4 Hz.

This relatively high frequency was a notable feature of Omega’s automatic movements from this period.

### Movement Specifications

Caliber: Omega 1012
Type: Automatic mechanical
Jewels: 23
Frequency: 28,800 vph
Power reserve: Approximately 42 hours (commonly quoted specification)
Functions: Hours, minutes, central seconds hand, and date
Date adjustment: Quickset according to caliber specifications
Hacking seconds: Present according to caliber specifications

The movement winds automatically through the natural movement of the wrist while worn.

The caliber was designed to combine traditional mechanical timekeeping with a relatively slim construction.

The caseback has not been removed in the available photos. The caliber actually installed and the movement serial number have therefore not been visually confirmed.

A complete service history is not available.

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## Timegrapher Reading

The watch was tested using a timegrapher.

The accompanying photo shows the following readings:

Rate: -5 seconds per day
Amplitude: 276°
Beat error: 0.2 ms
Lift angle: 52.0°
Frequency: 28,800 vph

These are encouraging readings for a vintage automatic mechanical watch.

The recorded rate of -5 seconds per day indicates that the watch was running approximately five seconds slow per day under the test conditions.

The amplitude of 276° is a positive reading. The beat error of 0.2 ms is also a good result.

Taken together, these readings indicate that the movement showed stable timekeeping during the test.

However, the timegrapher reading is a snapshot, taken in a specific position and under particular conditions.

Actual daily accuracy may vary depending on the watch’s position, power reserve, temperature, and wearing habits.

The recorded readings do not guarantee future accuracy and do not confirm the movement’s complete mechanical condition.

A recent full service has not been documented.

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## Replacement Black Leather Strap

The watch is fitted with a replacement black leather strap.

The leather strap is not the original strap fitted at the factory.

The replacement strap has crocodile embossing and black stitching along the edges.

Its classic appearance pairs well with the silver-colored dial and polished stainless steel case.

The strap is fitted with a polished metal buckle bearing an Omega emblem.

The buckle has a distinctive curved shape, and its silver-colored finish complements the rest of the watch.

Although the buckle bears an Omega emblem, its originality has not been independently verified.

The strap’s condition is visible in the photos, including slight creasing and superficial signs of wear.

The strap is adjustable using its multiple holes.

The exact suitable wrist circumference has not been measured or confirmed separately.

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## Stainless Steel Caseback

The watch has a closed stainless steel caseback.

An Omega De Ville emblem is centered on the outer face.

The designation TOOL 107 is also visible.

This marking relates to the identification of the caseback or its associated tool and should not be confused with the watch’s reference number.

The caseback has a predominantly brushed finish with polished surrounding sections.

Normal scratches and fine signs of wear are visible, consistent with the watch’s age and previous use.

The central engraving remains clearly recognizable.

No significant deformation is visible in the available photos.

The reference markings on the inside and the movement serial number have not been photographed.

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## Water Resistance

According to the original Omega specifications, reference 166.0134 has a water resistance of 3 ATM / 30 meters.

This is the historical factory specification from the time the watch was produced.

Given the age of this vintage example, its original water resistance should not be assumed to remain intact.

The condition of the crown seal, caseback gasket, and other sealing components has not been independently checked.

Current water resistance has not been tested and is not guaranteed.

The watch should not be exposed to water without a professional inspection of the seals and a water-resistance test beforehand.

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## Condition Overview

Case: Attractive vintage stainless steel case with normal superficial scratches and signs of wear.

Bezel: Polished stainless steel with light superficial wear and fine hairlines.

Dial: Silver-colored brushed dial with clearly visible age spots, marks, and patina.

Hour markers: Applied metal baton indices, all visibly present.

Hands: Metal hands with dark central accents and some age-related surface wear.

Date display: Framed date window at 3 o’clock with magnifier.

Crystal: Slightly domed acrylic crystal, appearing intact and possibly showing minor superficial wear.

Crown: Crown featuring the Omega logo, with minor normal signs of use.

Watch strap: Replacement black leather strap with crocodile embossing.

Buckle: Polished buckle with Omega emblem. Originality has not been independently confirmed.

Caseback: Closed stainless steel caseback with Omega De Ville emblem and normal vintage scratches from use.

Movement: Automatic mechanical; Omega caliber 1012 according to the reference specifications.

Timegrapher reading: -5 seconds per day, amplitude of 276°, beat error of 0.2 ms, and frequency of 28,800 vph.

Estimated year of manufacture: Circa 1972 / early 1970s.

Service history: Not confirmed.

Original box and papers: Not confirmed among the accessories offered.

Current water resistance: Not tested or guaranteed.

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## Overall Assessment

A classic Omega De Ville Automatic, reference 166.0134, reflecting the elegant and understated design style of Omega dress watches from the early 1970s.

The watch combines a traditional 36 mm stainless steel case with a silver-colored brushed dial, applied baton hour markers, and a practical date display at 3 o’clock.

Its balanced proportions and understated appearance make it a characteristic example of classic Swiss vintage dress watch design.

The polished case retains its attractive appearance and shows normal signs of wear.

The silver-colored dial displays clear age-related patina, including scattered spots and small surface marks.

These imperfections are clearly visible in the photos and contribute to the watch’s vintage character.

The replacement black leather strap provides a classic finish and is fitted with a polished buckle bearing an Omega emblem.

One positive feature is the accompanying timegrapher reading.

The recorded rate of -5 seconds per day, amplitude of 276°, and beat error of 0.2 ms are encouraging results for a watch of this age, measured in the test position used.

The exact year of manufacture of this example has not been confirmed, although the reference was part of Omega’s 1972 collection.

Overall, this is an attractive vintage Omega De Ville Automatic with classic proportions, a distinctive silver-colored dial with visible patina, and encouraging timegrapher results.

Please examine all photos carefully, as they form an important part of the description and show the watch’s actual visual condition.

The watch is offered in the condition shown in the photos, with no guarantee of current water resistance or future mechanical accuracy.