Omega Constellation Constellation Co-Axial 31 Red Gold / MOP
Reference 123.50.31.20.55.001
About this watch
The Omega Constellation Co-Axial 31 Red Gold / MOP is a masterpiece of luxury watchmaking. Its round 31mm case in luxurious red gold exudes warmth and richness, while the iridescent mother-of-pearl dial creates a visual spectacle that's hard to ignore. The Dauphine hands glide smoothly over the dial, ensuring time is both visible and beautifully presented. At its heart lies the Omega Caliber 8521, a self-winding movement designed for precision and reliability. With automatic winding in both directions and a power reserve of 50 hours, this watch is built to withstand daily wear and tear. Certified as a chronometer, it guarantees exceptional accuracy, making it a testament to Omega's commitment to quality and precision.
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Key Features
- Omega Caliber 8521 self-winding movement
- Red gold case with mother of pearl dial
- Fixed bezel with 12-hour markings
- 100m water resistance
- Certified chronometer for exceptional accuracy
Specifications
- Brand
- Omega
- Family
- Constellation
- Model
- Constellation Co-Axial 31 Red Gold / MOP
- Reference
- 123.50.31.20.55.001
- Movement
- 8521
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- Red Gold 31mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
![[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
![[WTS] (Spiralwinder) Vintage Omega Seamaster and Constellation Display Caseback](https://preview.redd.it/cggh0y484ttg1.jpg?width=640&crop=smart&auto=webp&s=c66c0fd82762d0dd65e26d1e01e073944c5599a0)
(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
![[WTS] Omega Constellation Pie Pan Cal. 564 Ref. 168.005 | Great Condition (Serviced) | $2600](https://preview.redd.it/tt68xr94rotg1.jpg?width=640&crop=smart&auto=webp&s=31a076d979b327d0e3fbfeb46f9683ed2545b6a7)
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
![[WTS] Package Deal! Two Omega Constellation Manhattan Day Dates - Integrated Bracelet Beauties CHEAP!](https://preview.redd.it/k2bpdrntbotg1.jpg?width=640&crop=smart&auto=webp&s=68167a62ae196c7605eca96dce9f86fbd193b3c6)
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
![[WTS] Omega Constellation Pie Pan 35mm Vintage Automatic Dog Leg 2852 168.005 Two Tone Watch - $1100 SHIPPED](https://preview.redd.it/l5ik2gbefftg1.jpg?width=640&crop=smart&auto=webp&s=171a53846d11c7182134a0c385cd9ded3c7a1db5)
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
![[WTS] Omega Constellation Automatic Chronometer Watch $1800 SHIPPED](https://preview.redd.it/pjewz59sg7tg1.jpg?width=640&crop=smart&auto=webp&s=cd0159e50e1c0d45b25650f58ca4a15bb87b337a)
Omega Constellation Automatic Chronometer Watch $1800 SHIPPED
This Omega Constellation watch features a Cal 1111 movement, 35.5 mm diameter case, and comes with original Omega strap.
- Condition: pre-owned working condition
- Movement: Cal 1111
- Diameter: 35.5mm
![[WTS] Omega Constellation Pie Pan Ref. 168.005 | Great Condition (Serviced) | $2450](https://preview.redd.it/gsz58e6mzhsg1.jpg?width=640&crop=smart&auto=webp&s=17eafe16386a3a9480fbaacd1a8d5c034bd48423)
Omega Constellation Pie Pan Ref. 168.005 | Great Condition (Serviced) | $2450
The Omega Constellation Pie Pan 168.005 is one of the most iconic dress watches of the 1960s, featuring a stainless steel 34mm case with dog-leg lugs and a silver sunburst dial.
- Condition: Great Condition (Serviced)
- Case size: 34mm
- Movement type: Automatic