Omega Constellation Constellation Co-Axial 27 Brushed Stainless Steel / Diamond / MOP Stars
Reference 123.15.27.20.05.001
About this watch
The Omega Constellation Co-Axial 27 is a masterpiece of luxury watchmaking, blending elegance and precision in perfect harmony. This exquisite timepiece boasts a stunning Mother of Pearl dial that shimmers with iridescent hues, surrounded by a dazzling diamond bezel. The sleek Dauphine hands add sophistication to the overall design, while the brushed stainless steel case provides a sturdy yet refined look. With a water resistance of 100 meters and a power reserve of 50 hours, this watch is not just a pretty face but also a reliable companion for daily wear or special occasions.
Key Features
- Omega caliber 8520 movement
- Mother of Pearl dial
- Diamond bezel
- Sapphire crystal glass
- Water resistance up to 100 meters
Specifications
- Brand
- Omega
- Family
- Constellation
- Model
- Constellation Co-Axial 27 Brushed Stainless Steel / Diamond / MOP Stars
- Reference
- 123.15.27.20.05.001
- Movement
- 8520
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- Stainless Steel 27mm
- Dial Color
- White
- Crystal
- Sapphire
- Water Resistance
- 100
Current Listings
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Vintage Omega Constellation Chronometer - 168.0056 - C-Shaped Case - $799 Shipped!
A vintage Omega Constellation Chronometer with a C-shaped case, inspired by Gerald Genta, featuring an automatic movement and date window at 3 o'clock.
- Condition: Good condition with signs of wear
- Case shape: C-Shaped Case
- Case size: 35mm diameter
- Movement type: Automatic
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Rare 1956 Omega Constellation in Rose Gold / SS
This is an older Omega Constellation model from 1956, featuring one of the first automatic 5xx series movements. The watch has a smooth winding mechanism and looks great in natural light.
- Condition: Pre-owned with a scratch on the dial between 1 and 2
- Movement series: 5xx series (automatic)
- Case diameter: 34mm
![[WTS] FULL COLLECTION SALE PT 2: Tiffany Eastwest (now discontinued), Hamilton Intramatic Chronograph 40mm, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm](https://preview.redd.it/6d74v58i0uye1.jpeg?auto=webp&s=2e9919a49ca828355ab1d176dba93d33aca30a68)
FULL COLLECTION SALE PT 2: Tiffany Eastwest (now discontinued), Hamilton Intramatic Chronograph 40mm, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm
The seller is listing a collection of five watches for sale, including a Hamilton Intramatic Chronograph, Baltic Aquascaphe GMT, Longines Legend Diver 36mm Red Dial, Omega Constellation 35mm, and Tiffany Eastwest.
- Condition: pristine
- Movement: Soprod C125 GMT
- Case size: 40/20mm
- Crystal: domed sapphire
![[WTS] Omega Constellation. PiePan. Gorgeous Dial.](https://preview.redd.it/go3xk1a1etye1.jpeg?auto=webp&s=e6b5a812cb4c1af3513e7e3a1d0f241589a67a36)
Omega Constellation. PiePan. Gorgeous Dial.
This Omega Constellation features a Pie Pan dial and is an automatic watch. It comes with an AM strap.
- Condition: nice condition
- Case size: 40mm diameter
- Strap material: AM strap
![[WTS] Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"](https://external-preview.redd.it/MVA-emtV8JeBhQ-N8SCDZ4AQZKD6g1dGAdDg2DehcP8.jpg?auto=webp&s=2ecd61efe4fb917d0410b3480a5e96de2aba84a6)
Omega Constellation Co-Axial Chronometer, or, "We have PRX at home"
The Omega Constellation Co-Axial Chronometer features a 35mm case size, Caliber 2500 chronometer movement, and a reverse clous de paris dial.
- Condition: Good (with some hairline scratches)
- Case dimensions: 35mm diameter, 38.4mm lug-to-lug, 10.8mm thickness
- Bracelet size: adjustable to fit a 6.75 inch wrist
- Movement type: Caliber 2500 chronometer, Co-Axial movement
![[WTS] Rare 1959 Omega Constellation w/ Railtrack Dial, Steel Case & Special Chronometer Movement](https://preview.redd.it/kpgaecagqzxe1.jpg?width=640&crop=smart&auto=webp&s=f0ca08586250ecc4ad9654138f812186603c0fc8)
Rare 1959 Omega Constellation w/ Railtrack Dial, Steel Case & Special Chronometer Movement
A rare 1959 Omega Constellation with a railtrack dial and special chronometer movement. The watch has an original non-refinished silver dial with patina and an original stainless steel case with wear.
- Condition: Pre-owned, needs service
- Case size: 34.5mm
- Diameter: 34.5mm
- Movement accuracy: Special chronometer certified with high accuracy

1970s Omega Constellation Ref: 391.0801 Quartz with Box
A 1970s Omega Constellation Ref: 391.0801 Quartz watch in excellent condition, featuring a 32mm stainless steel case and original horizontal grained silver dial.
- Condition: Excellent with very light wear from use
- Case Size: 32mm
- Bracelet Links: 23
- Movement Type: Quartz

2000s Omega Constellation Ref: 1502.30 Automatic
This is a 2000s Omega Constellation Ref: 1502.30 Automatic watch, featuring a 34mm Stainless Steel case and an excellent original silver/white dial.
- Condition: Very nice with some wear from use
- Case Size: 34mm diameter
- Bracelet Links: 21 links (+1 extra)
- Bezel Type: fixed Stainless Steel bezel with recessed Roman Numerals
![[WTS] VintageOmega Constellation Diamond SS/18kt YG](https://preview.redd.it/ujso6c46klxe1.jpg?width=640&crop=smart&auto=webp&s=2cb8065b102b68512e80b92cb8de7594b83c2829)
VintageOmega Constellation Diamond SS/18kt YG
This vintage Constellation features a diamond bezel and dial, with a quartz movement running properly. The watch has a 33.5mm case and fits a 7.5 inch wrist.
- Condition: Good, with some minor flaws (dust under crystal/dial, missing end pieces on links)
- Case Size: 33.5mm
- Wrist Fit: 7.5 inch wrist