Omega Constellation Constellation Co-Axial 31 Stainless Steel / MOP
Reference 123.10.31.20.05.001
About this watch
The Omega Constellation Co-Axial 31 Stainless Steel / MOP is a masterpiece of luxury watchmaking, boasting a stunning round shape with a diameter of 31 mm. The polished stainless steel case radiates sophistication, while the mesmerizing mother of pearl dial shifts colors depending on the light. This certified chronometer features an automatic movement (Omega caliber 8520) with a frequency of 25,200 vibrations per hour and a power reserve of up to 50 hours. With its versatility, exceptional design, and reliable movement, this timepiece is perfect for dressing up or casual wear. Its robust water resistance of 100 meters ensures it can withstand splashes of water or a day at the beach. As an investment in quality, craftsmanship, and timeless design, the Omega Constellation Co-Axial 31 is a worthy luxury watch that will stand the test of time.
Key Features
- Automatic movement (Omega caliber 8520)
- Polished stainless steel case
- Mesmerizing mother of pearl dial
- Certified chronometer
- Water resistance of 100 meters
- Power reserve up to 50 hours
- Robust and durable design
Specifications
- Brand
- Omega
- Family
- Constellation
- Model
- Constellation Co-Axial 31 Stainless Steel / MOP
- Reference
- 123.10.31.20.05.001
- Movement
- 8520
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- Stainless Steel 31mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
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Omega Constellation Ref. 198.0118 Textured Dial – $650
- Condition: fair vintage condition
- Case size: 34mm (wears larger due to integrated bracelet design)
- Fits wrist: ~7.5” comfortably
- Bracelet material: original Omega, 10k gold filled
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Omega Constellation Pie Pan Crosshair Dial Ref 14393
This Omega Constellation features a Pie Pan Crosshair dial and comes fitted on an Omega beads of rice bracelet. The 35mm case is in good shape with sharp lugs.
- Condition: some wear, overall great condition, sharp lugs
- Bracelet: Omega beads of rice bracelet
![[WTS] omega constellation 168.005 | original crystal & crown | unpolished](https://preview.redd.it/djr5u6dfcytg1.jpg?width=640&crop=smart&auto=webp&s=86193038a85ee93ff98e1d1ae207e32cd34f2fd9)
omega constellation 168.005 | original crystal & crown | unpolished
The Omega Constellation is a luxury watch being sold unpolished, retaining its original crystal and crown. It comes with a metal lined presentation box.
- Condition: unpolished
- Original crystal & crown: true
- Shipped: true
![[WTS] Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced (11/2025) – $1945 + shipping OBO](https://preview.redd.it/9r5c6m3hkttg1.jpg?width=640&crop=smart&auto=webp&s=e7d8be9e1b924b6ed464d0db3b4482a9c93a4d17)
Omega Constellation Pie Pan 1964 – Ref. 168.005 – Dog-Leg Lugs – Serviced (11/2025) – $1945 + shipping OBO
a 1964 Omega Constellation Pie Pan ref. 168.005 featuring dog-leg lugs and cal. 561 movement, serviced in November 2025.
- Condition: Excellent for its age
- Calibre: Cal. 561 movement
- Year: 1964
- Movement type: Chronometer-grade
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(Spiralwinder) Vintage Omega Seamaster and Constellation Display Caseback
·
$65
This listing is about a display caseback designed to fit many Omega Seamaster and Constellation watches from the 1960s, made by Spiralwinder.
- Caseback type: Spiralwinder
- Compatible models: 1960s Seamasters and Constellations
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Omega Constellation Pie Pan Cal. 564 Ref. 168.005 | Great Condition (Serviced) | $2600
The Omega Constellation Pie Pan Ref. 168.005 is a quintessential 1960s dress watch that embodies Omega’s pursuit of precision and elegance during the golden age of Swiss watchmaking.
- Condition: Great serviced condition
- Movement: Omega Calibre 564
- Jewels: 24
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Package Deal! Two Omega Constellation Manhattan Day Dates - Integrated Bracelet Beauties CHEAP!
Two Omega Constellation Manhattan Day-Dates for sale, one in full steel and the other in two-tone. Both have crisp white dials, luminescent hands, and gold dot markers.
- Condition: Pre-owned, unpolished with age-related wear
- Diameter: 33MM
- Bracelet Length Stainless: up to approximately 7.5 inches
- Bracelet Length Two Tone: just over 7 inches
![[WTS] Rare Omega Constellation 2000 Millennium 1504.50](https://preview.redd.it/lvr5v4ltugtg1.jpg?width=640&crop=smart&auto=webp&s=4ded1995b484c1b0142f002a30f47deed7c31720)
Rare Omega Constellation 2000 Millennium 1504.50
This Omega Constellation 2000 Millennium edition is a unique timepiece commemorating the turn of the millennium, with only 2000 pieces produced. It features 'OMEGA 2000' text and lumed roman numeral markers instead of stick indexes.
- Condition: Good condition, with normal signs of wear and scratching on the crystal
- Production run: Limited to 2000 pieces
- Service history: Unknown
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Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1100 SHIPPED
This Omega Constellation Pie Pan watch is stunning and a pinnacle in Omega's dress watch heritage. It features an original, untouched dial with patina'd perfectly and comes on a red leather strap.
- Condition: Pre-owned, serviced a few years back
- Lug width: 18mm
- Strap material: red leather