Omega Constellation Constellation Co-Axial 31 White Gold / Diamond / Black Supernova
Reference 123.55.31.20.51.001
About this watch
The Omega Constellation Co-Axial 31 is a masterpiece of luxury watchmaking, combining high-end craftsmanship with breathtaking aesthetics. This stunning timepiece features a white gold case radiating luxury, paired with a black supernova dial that adds an element of depth and intrigue. The gem-set bezel and indexes enhance its elegance, making it a true statement piece. At the heart of this model is the Omega Caliber 8520, renowned for its reliability and precision. With a frequency of 25,200 vibrations per hour, it ensures accuracy and longevity. This automatic movement features a Co-Axial escapement, reducing friction between components and extending the watch's lifespan. The power reserve of 50 hours allows you to take off your watch for extended periods without worrying about it stopping. Despite its luxurious appearance, this watch is surprisingly comfortable to wear, with a rounded case that hugs the wrist. Paired with a white gold bracelet, it complements the case perfectly. With a water resistance of up to 100 meters, this timepiece adapts to your lifestyle, not the other way around! Whether you're attending a gala or enjoying a day out, this watch is perfect for anyone who appreciates the finer things in life.
Key Features
- Omega Caliber 8520 automatic movement
- Co-Axial escapement for reduced friction and increased longevity
- 50-hour power reserve for extended wear
- White gold case with gem-set bezel and indexes
- Black supernova dial with unique texture and reflectivity
- Sapphire crystal glass for durability and scratch resistance
- Water resistance of up to 100 meters
Specifications
- Brand
- Omega
- Family
- Constellation
- Model
- Constellation Co-Axial 31 White Gold / Diamond / Black Supernova
- Reference
- 123.55.31.20.51.001
- Movement
- 8520
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- White Gold 31mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
![[WTS] (Price reduced) 1966 Omega Constellation](https://preview.redd.it/k1gfod3bmjxg1.jpg?width=640&crop=smart&auto=webp&s=d9e26fb1315242dfd78c019a49f80e27c62d4bd8)
(Price reduced) 1966 Omega Constellation
A 1966 Omega Constellation in original condition featuring the 'dog leg' lugs and a cross hair dial. The watch remains in gorgeous condition with only minor scratches.
- Condition: UNPOLISHED/UNTOUCHED with minor scratches on the case and caseback
- Case material: Solid gold bezel + case back medallion, gold-capped lugs over solid stainless steel
- Movement serial #: 24501601
- Jewels: 24 jewels
![[WTS] Omega Constellation Cal. 561 Ref. 168.005 | Great Condition (Serviced) | $1650](https://external-preview.redd.it/eTJ4N2o3NjJrZ3hnMbqxH916W-bHGVNBR6FThmAKLYSqlUbpvBSoQnobQu9c.png?format=pjpg&auto=webp&s=9e2769658a82a4c2ddb037df1d036be51667059e)
Omega Constellation Cal. 561 Ref. 168.005 | Great Condition (Serviced) | $1650
The Omega Constellation ref. 168.005 stands as one of the most iconic vintage dress watches of the mid-1960s, admired for its balanced design and enduring appeal.
- Condition: Great serviced condition with minor scratches and patina spots
- Dial color: flat silver
- Case size: 34mm diameter
- Crystal material: plexiglass
![[WTS] asking 800$ - Vintage Omega Constellation Manhattan Mens Date Watch (Working Condition)](https://preview.redd.it/ipz9n4cuffxg1.jpg?width=640&crop=smart&auto=webp&s=866918426d5bfc91eb70f0505890743844e087db)
asking 800$ - Vintage Omega Constellation Manhattan Mens Date Watch (Working Condition)
a vintage men's date watch from Omega's Constellation Manhattan collection
- Condition: Working Condition
- Price range: $800$
- Vintage: true
![[WTS] Omega Omega Constellation Ref. 14393/4 SC – 18K Solid Gold – 18K Gold Pie Pan Dial Price : 6000$](https://preview.redd.it/ev92q0r9fdxg1.jpg?width=640&crop=smart&auto=webp&s=804ea63019910a65bbdb67458be489da8c541c01)
Omega Omega Constellation Ref. 14393/4 SC – 18K Solid Gold – 18K Gold Pie Pan Dial Price : 6000$
A stunning Omega Constellation Ref. 14393/4 SC watch in solid 18K yellow gold features a Pie Pan Dial, automatic movement Caliber 564 and classic star emblem above 6 o'clock.
- Condition: Excellent vintage condition
- Case material: 18K Solid Gold
- Dial material: 18K Gold
- Movement: Caliber 564, Automatic
![[WTS] Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean](https://preview.redd.it/sxqsg6lxybxg1.jpg?width=640&crop=smart&auto=webp&s=8439534e57893d9a9ceae94d2d797859b90c9a33)
Omega Constellation Manhattan ref. 396.1070 - 33mm Quartz, Blue Hands & Logo, Very Clean
This is a vintage Omega Constellation Manhattan watch featuring a silvery white dial, blue hands and dial printing. The 33mm diameter case has a tonneau shape and wide integrated bracelet.
- Condition: Very good
- Case diameter: 33mm
- Lug to lug length: 35.2mm
- Bracelet size: ~6.75" wrist
![[WTS] Omega Constellation 1968 with white gold bezel and 'linen' dial](https://preview.redd.it/p30wr43gcaxg1.jpg?width=640&crop=smart&auto=webp&s=24cd09f538b183d9a6410d0b7deec3c11e4b1acf)
Omega Constellation 1968 with white gold bezel and 'linen' dial
A used 1968 Omega Constellation featuring an automatic caliber 564 movement with a quickset date, white gold bezel, and 'linen' dial.
- Condition: 7.5/10
- Movement: caliber 564
- Crystal: unsigned with minor scratches
- Dial marks: slight marks visible under strong artificial light
![[WTS] Omega Constellation Pie Pan Gold Filled Reference 14902 SERVICED](https://preview.redd.it/4op1m7zlb6xg1.jpg?width=640&crop=smart&auto=webp&s=f09268fd9d5eac6f992bf52ab2f1aa43b4d0ac21)
Omega Constellation Pie Pan Gold Filled Reference 14902 SERVICED
A vintage Omega Constellation Pie Pan from 1966, featuring a gold-filled case and serviced recently.
![[WTS] 1961 Omega Jumbo Constellation ref. 14778-61 SC w/ Cal. 551 – Uncommon 37mm gold-capped case – $2,300 shipped all-in](https://preview.redd.it/m02u6jtlb5xg1.jpg?width=640&crop=smart&auto=webp&s=a381ca318cbbd98121524449084c05dcb93845d0)
1961 Omega Jumbo Constellation ref. 14778-61 SC w/ Cal. 551 – Uncommon 37mm gold-capped case – $2,300 shipped all-in
This Omega Constellation is an uncommon 'jumbo' 37mm no-date model with a gold-capped case and Cal. 551 movement. It has been freshly serviced in Jan 2026.
- Condition: Very strong overall condition with a clean, original-looking dial and freshly serviced Cal. 551 movement
- Case diameter: 37mm
- Lug width: 19mm
- Movement caliber: Cal. 551
![[WTS] Omega Constellation 168.001 “Jumbo” 37MM Gold Capped - $2,550](https://preview.redd.it/gpm7n2whu0xg1.jpg?width=640&crop=smart&auto=webp&s=f788e1cad4efd44e93af6e9214c33c690be4fd1f)
Omega Constellation 168.001 “Jumbo” 37MM Gold Capped - $2,550
This Omega Constellation 'Jumbo' is a rare 37MM model released only to specific Asian markets, featuring a Calibre 561 Automatic Chronometer movement and a 14k Constellation emblem on its stainless case back. The watch appears original with all the appropriate appliques and indices, and has been well-maintained throughout its years. It's now available for sale at $2,550.
- Condition: Excellent condition for its age
- Case size: 37MM diameter
- Movement: Calibre 561 Automatic Chronometer (24 jewels, 19,800 vph)
- Functions: Hours, minutes, central sweep-second hand, date (semi-quickset)