Omega - De Ville Co-Axial Chronometer - No reserve price - 4831.51.31 - Men - 2000-2010
07
days
18
hours
26
minutes
36
seconds
Current bid
€ 500
No reserve price
Expert
Selected by Joaquín Fernández Cebrián
Over 25 years' watch expertise and nearly 20 years as a goldsmith business owner.
Estimate € 2,200 - € 2,500
 | €500 | |
|---|---|---|
 | €480 | |
 | €440 | |
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This Omega De Ville Co-Axial Chronometer, reference 4831.51.31, dates from 2000–2010 and has an automatic movement, a 38 mm stainless-steel case and a black dial.
AI-assisted summary
Description from the seller
Omega De Ville Co-Axial Chronometer 4831.51.31 – 38 mm – Automatic – Co-Axial – Chronometer – Black dial – Date display
Classic Omega De Ville Co-Axial Chronometer with a black dial, a polished stainless steel case, and a black leather Omega strap with folding clasp. This model (reference 4831.51.31) is powered by the automatic Omega caliber 2500, featuring a Co-Axial escapement and chronometer certification.
The case has an official diameter of 37.5 mm, but is often referred to as 38 mm. The design is understated and classical, with prominent hour indices, a central seconds hand, and a date window at 3 o’clock.
The black dial shows visible signs of aging and wear. In several areas, particularly in the lower and central portions, small irregularities and tiny scratches are visible. These appear to be on or within the surface of the dial or the lacquer layer, and not solely reflections on the crystal. This has been taken into account in the condition description below.
---
Basic information
Brand: Omega
Collection: De Ville
Model: Co-Axial Chronometer
Reference: 4831.51.31
Case diameter: 37.5 mm / about 38 mm
Case material: Stainless steel
Dial: Black
Glass: Dome sapphire crystal
Movement: Automatic
caliber: Omega 2500
Escapement: Omega Co-Axial
Certification: Chronometer
Frequency: 25,200 vph / 3.5 Hz
Power reserve: Approximately 48 hours
Functions: Hours, minutes, central seconds, and date
Water resistance (per model specs): 10 bar / 100 meters
Case back: Closed stainless steel case back
Bracelet: Black leather Omega strap
Clasp: Omega folding clasp
Swiss Made
---
Key features
- Classic Omega De Ville with a case diameter of circa 38 mm
- Automatic Omega caliber 2500
- Co-Axial escapement
- Chronometer-certified movement
- Black dial with applied hour markers
- Date window at 3 o’clock
- Domed sapphire crystal
- Omega-signed crown
- Leather Omega watch strap
- Omega folding clasp
- Closed case back with De Ville emblem
- Excellent daily rate deviation of +1 second per day according to timegrapher measurement
---
Estimated production period
Estimated production period: circa mid to late 2000s.
De Ville Co-Axial models from this generation are among the earlier Omega watches equipped with the Co-Axial caliber 2500.
Without accompanying dated documentation, the exact production year of this specific watch cannot be confirmed.
---
Watch case
The round watch case is made of stainless steel and features the classic elegant design of the De Ville collection.
Diameter: 37.5 mm, typically rounded to about 38 mm
Material: Stainless steel
Finish: Predominantly high-polish
Lug width: About 19 mm
Bezel: Fixed, polished stainless-steel bezel
The case has gracefully shaped lugs and a relatively slim profile, allowing the watch to sit elegantly on the wrist despite its classic size.
The polished surfaces show light wear and fine hairlines. There are no noticeable large dents or significant damage.
---
Dial
The black dial has a classic, nearly monochrome design.
The dial features the following details:
- Applied, polished baton hour markers
- Omega logo and OMEGA designation below the 12 o’clock position
- De Ville designation above the 6 o’clock position
- CO-AXIAL designation
- CHRONOMETER designation
- Minute markers around the outer edge
- SWISS MADE designation at the bottom of the dial
The hour and minute hands are luminous. A slender central seconds hand completes the time display.
The dial shows visible signs of aging and surface deterioration. Scattered across the dial are small, pointed irregularities and specks, particularly in the lower and central areas. The finish around some hour markers is also not perfectly even.
These characteristics are consistent with local aging or deterioration of the surface or lacquer finish of the dial. The exact cause cannot be determined without disassembly. For this reason, the visible specks are not described merely as dirt or reflections.
The inscriptions, hour markers, and overall readability remain clearly intact.
---
Date display
At the 3 o’clock position there is a rectangular date window with a light-colored date disc and dark numerals.
The date display adds a practical yet subtle function to the otherwise classical design.
---
Movement
Inside the watch sits the automatic Omega caliber 2500.
Type: Automatic mechanical
Caliber: Omega 2500
Escapement: Co-Axial
Frequency: 25,200 vph / 3.5 Hz
Power reserve: Approximately 48 hours
Certification: Chronometer
Functions: Hours, minutes, seconds, and date
The 2500 caliber marks an important chapter in Omega's modern history, as it belongs to the first generations of Omega watches equipped with the Co-Axial escapement.
---
Timegrapher measurement
Timegrapher measurement yielded the following results:
Rate deviation: +1 second per day
Amplitude: 318°
Beat error: 0.0 ms
Lift angle: 52.0°
Frequency: 25,200 vph
The measured rate deviation is very small and the beat error is 0.0 ms.
These timegrapher measurements are a snapshot of the movement's performance in the measured position. They do not constitute a guarantee of daily accuracy while worn or of the future mechanical state of the movement.
---
Watch crystal
The watch is fitted with a domed sapphire crystal.
Due to the curved shape, depending on the viewing angle, distinct light reflections can occur.
The crystal generally appears to be in good condition, with no obvious major damage.
---
Crown
The ridged crown features the Omega logo.
The crown is neatly integrated into the case design and allows manual winding and setting of the time and date.
---
Case back
The closed stainless steel case back is secured with multiple screws.
In the center is a medallion with the characteristic De Ville emblem and the inscription:
CO-AXIAL ESCAPEMENT
The case back combines brushed and polished surfaces. There are normal light signs of wear and fine micro-scratches.
---
Bracelet
The watch is fitted with a black leather Omega strap with an alligator/crocodile-leather-like texture.
The underside bears Omega branding and reference markings.
The strap shows signs of wear and slight distortion from wear, but is generally still in decent condition.
Currently, the strap is suitable for a wrist circumference of approximately 20 to 21 cm, depending on the chosen setting.
---
Clasp
The watch features a stainless steel folding clasp signed by Omega.
The clasp bears a clear OMEGA logo and shows light scratches and normal signs of use on the metal surfaces.
---
Water resistance
The original model specification is 10 bar / 100 meters.
For a used mechanical watch, current water resistance cannot be guaranteed based solely on the original factory specs.
It is recommended to have the watch tested for water resistance before exposing it to water.
---
Condition
Watch case: Good used condition with light scratches and superficial wear.
Bezel: Light wear on the polished finish.
Sapphire crystal: Good condition, without notable major damage.
Dial: Visible signs of aging and surface deterioration, including localized, pinpoint irregularities in the black finish.
Hour markers: All present, with slight signs of aging in some places.
Hands: Good used condition.
Crown: Omega-signed crown with normal signs of wear.
Case back: Light scratches and signs of wear.
Bracelet: Used condition, with signs of wear and slight distortion.
Folding clasp: Light to normal signs of wear.
Movement measurement: +1 second per day, amplitude of 318°, and beat error of 0.0 ms.
---
Overall assessment
A classically designed Omega De Ville Co-Axial Chronometer with a versatile case diameter of circa 38 mm, a black dial, and the automatic Omega caliber 2500.
Technically, during the performed timegrapher measurement the watch showed a rate deviation of +1 second per day, an amplitude of 318°, and a beat error of 0.0 ms.
The watch case is cosmetically in good condition, with normal, light signs of wear.
A notable point regarding the condition of this watch is the black dial. It shows visible, scattered minuscule scratches, pinpoint spots, and irregularities, particularly in the central and lower areas.
These features appear to be consistent with localized aging or deterioration of the lacquer coating or surface finish of the dial, and are therefore explicitly noted in the condition description.
Omega De Ville Co-Axial Chronometer 4831.51.31 – 38 mm – Automatic – Co-Axial – Chronometer – Black dial – Date display
Classic Omega De Ville Co-Axial Chronometer with a black dial, a polished stainless steel case, and a black leather Omega strap with folding clasp. This model (reference 4831.51.31) is powered by the automatic Omega caliber 2500, featuring a Co-Axial escapement and chronometer certification.
The case has an official diameter of 37.5 mm, but is often referred to as 38 mm. The design is understated and classical, with prominent hour indices, a central seconds hand, and a date window at 3 o’clock.
The black dial shows visible signs of aging and wear. In several areas, particularly in the lower and central portions, small irregularities and tiny scratches are visible. These appear to be on or within the surface of the dial or the lacquer layer, and not solely reflections on the crystal. This has been taken into account in the condition description below.
---
Basic information
Brand: Omega
Collection: De Ville
Model: Co-Axial Chronometer
Reference: 4831.51.31
Case diameter: 37.5 mm / about 38 mm
Case material: Stainless steel
Dial: Black
Glass: Dome sapphire crystal
Movement: Automatic
caliber: Omega 2500
Escapement: Omega Co-Axial
Certification: Chronometer
Frequency: 25,200 vph / 3.5 Hz
Power reserve: Approximately 48 hours
Functions: Hours, minutes, central seconds, and date
Water resistance (per model specs): 10 bar / 100 meters
Case back: Closed stainless steel case back
Bracelet: Black leather Omega strap
Clasp: Omega folding clasp
Swiss Made
---
Key features
- Classic Omega De Ville with a case diameter of circa 38 mm
- Automatic Omega caliber 2500
- Co-Axial escapement
- Chronometer-certified movement
- Black dial with applied hour markers
- Date window at 3 o’clock
- Domed sapphire crystal
- Omega-signed crown
- Leather Omega watch strap
- Omega folding clasp
- Closed case back with De Ville emblem
- Excellent daily rate deviation of +1 second per day according to timegrapher measurement
---
Estimated production period
Estimated production period: circa mid to late 2000s.
De Ville Co-Axial models from this generation are among the earlier Omega watches equipped with the Co-Axial caliber 2500.
Without accompanying dated documentation, the exact production year of this specific watch cannot be confirmed.
---
Watch case
The round watch case is made of stainless steel and features the classic elegant design of the De Ville collection.
Diameter: 37.5 mm, typically rounded to about 38 mm
Material: Stainless steel
Finish: Predominantly high-polish
Lug width: About 19 mm
Bezel: Fixed, polished stainless-steel bezel
The case has gracefully shaped lugs and a relatively slim profile, allowing the watch to sit elegantly on the wrist despite its classic size.
The polished surfaces show light wear and fine hairlines. There are no noticeable large dents or significant damage.
---
Dial
The black dial has a classic, nearly monochrome design.
The dial features the following details:
- Applied, polished baton hour markers
- Omega logo and OMEGA designation below the 12 o’clock position
- De Ville designation above the 6 o’clock position
- CO-AXIAL designation
- CHRONOMETER designation
- Minute markers around the outer edge
- SWISS MADE designation at the bottom of the dial
The hour and minute hands are luminous. A slender central seconds hand completes the time display.
The dial shows visible signs of aging and surface deterioration. Scattered across the dial are small, pointed irregularities and specks, particularly in the lower and central areas. The finish around some hour markers is also not perfectly even.
These characteristics are consistent with local aging or deterioration of the surface or lacquer finish of the dial. The exact cause cannot be determined without disassembly. For this reason, the visible specks are not described merely as dirt or reflections.
The inscriptions, hour markers, and overall readability remain clearly intact.
---
Date display
At the 3 o’clock position there is a rectangular date window with a light-colored date disc and dark numerals.
The date display adds a practical yet subtle function to the otherwise classical design.
---
Movement
Inside the watch sits the automatic Omega caliber 2500.
Type: Automatic mechanical
Caliber: Omega 2500
Escapement: Co-Axial
Frequency: 25,200 vph / 3.5 Hz
Power reserve: Approximately 48 hours
Certification: Chronometer
Functions: Hours, minutes, seconds, and date
The 2500 caliber marks an important chapter in Omega's modern history, as it belongs to the first generations of Omega watches equipped with the Co-Axial escapement.
---
Timegrapher measurement
Timegrapher measurement yielded the following results:
Rate deviation: +1 second per day
Amplitude: 318°
Beat error: 0.0 ms
Lift angle: 52.0°
Frequency: 25,200 vph
The measured rate deviation is very small and the beat error is 0.0 ms.
These timegrapher measurements are a snapshot of the movement's performance in the measured position. They do not constitute a guarantee of daily accuracy while worn or of the future mechanical state of the movement.
---
Watch crystal
The watch is fitted with a domed sapphire crystal.
Due to the curved shape, depending on the viewing angle, distinct light reflections can occur.
The crystal generally appears to be in good condition, with no obvious major damage.
---
Crown
The ridged crown features the Omega logo.
The crown is neatly integrated into the case design and allows manual winding and setting of the time and date.
---
Case back
The closed stainless steel case back is secured with multiple screws.
In the center is a medallion with the characteristic De Ville emblem and the inscription:
CO-AXIAL ESCAPEMENT
The case back combines brushed and polished surfaces. There are normal light signs of wear and fine micro-scratches.
---
Bracelet
The watch is fitted with a black leather Omega strap with an alligator/crocodile-leather-like texture.
The underside bears Omega branding and reference markings.
The strap shows signs of wear and slight distortion from wear, but is generally still in decent condition.
Currently, the strap is suitable for a wrist circumference of approximately 20 to 21 cm, depending on the chosen setting.
---
Clasp
The watch features a stainless steel folding clasp signed by Omega.
The clasp bears a clear OMEGA logo and shows light scratches and normal signs of use on the metal surfaces.
---
Water resistance
The original model specification is 10 bar / 100 meters.
For a used mechanical watch, current water resistance cannot be guaranteed based solely on the original factory specs.
It is recommended to have the watch tested for water resistance before exposing it to water.
---
Condition
Watch case: Good used condition with light scratches and superficial wear.
Bezel: Light wear on the polished finish.
Sapphire crystal: Good condition, without notable major damage.
Dial: Visible signs of aging and surface deterioration, including localized, pinpoint irregularities in the black finish.
Hour markers: All present, with slight signs of aging in some places.
Hands: Good used condition.
Crown: Omega-signed crown with normal signs of wear.
Case back: Light scratches and signs of wear.
Bracelet: Used condition, with signs of wear and slight distortion.
Folding clasp: Light to normal signs of wear.
Movement measurement: +1 second per day, amplitude of 318°, and beat error of 0.0 ms.
---
Overall assessment
A classically designed Omega De Ville Co-Axial Chronometer with a versatile case diameter of circa 38 mm, a black dial, and the automatic Omega caliber 2500.
Technically, during the performed timegrapher measurement the watch showed a rate deviation of +1 second per day, an amplitude of 318°, and a beat error of 0.0 ms.
The watch case is cosmetically in good condition, with normal, light signs of wear.
A notable point regarding the condition of this watch is the black dial. It shows visible, scattered minuscule scratches, pinpoint spots, and irregularities, particularly in the central and lower areas.
These features appear to be consistent with localized aging or deterioration of the lacquer coating or surface finish of the dial, and are therefore explicitly noted in the condition description.
Details
Brand
Omega
Gender
Men
Model
De Ville Co-Axial Chronometer
Band material
Leather
Reference number
4831.51.31
Band length
Long (over 200 mm)
Shipped insured
Yes
Repainted dial
No
Period
2000-2010
Movement
Automatic
Dial colour
Black
Case material
Stainless steel
Original box included
No
Original papers included
No
Case diameter
38 mm
Original warranty included
No
Condition
Good - visible signs of wear
