The replica Constellation 131.20 is a first copy of the Omega Constellation Gents' 39mm stainless steel automatic, reference 131.20.39.20.02.001. First copy makers reproduce the barrel-shaped case, the claws at 3 and 9 o'clock, the mono-bloc bezel and the integrated bracelet, but the movement inside is normally a third-party Japanese or Chinese automatic instead of Omega's Co-Axial Master Chronometer Calibre 8800. Street prices for a wearable first copy usually fall between $90 and $450, and the gap between a cheap model and a top grade shows up in the bracelet, the dial printing and the date window.
What is the Omega Constellation 131.20?
Reference 131.20 covers the modern 39mm Constellation Gents' line, introduced with the fifth-generation design language that brought back the claws and a slimmer profile. The genuine watch runs the Omega 8800 movement with a 15,000 gauss anti-magnetic rating, a sapphire caseback and 50 metres of water resistance. Its case measures around 39mm wide and roughly 12mm thick, which is why replicas of this reference feel closer to a dress sports watch than a bulky diver.
How do first copy Constellation 131.20 watches differ from the original?
Most differences sit in finishing and internals rather than the silhouette. Check these points before you judge a listing:
- Movement: genuine 8800 beats at 25,200 vph with a co-axial escapement; copies use generic automatics or quartz.
- Caseback: the original has an exhibition back with perlage and engraved spec text, copies often show rough finishing or a solid lid.
- Claws: the polished claws should hug the bezel edges with an even gap on both sides.
- Bracelet: genuine links taper smoothly and the clasp closes flush; cheap copies rattle and use pressed metal.
- Dial text: font weight, spacing and the Constellation star should be crisp under magnification.
What grades of the 131.20 replica exist?
Sellers usually split stock into three tiers. Entry grade models use plated cases, mineral glass and a loud rotor, and they rarely survive daily wear. Mid grade versions add 316L steel, sapphire crystal and a reliable Japanese automatic. Top grade, sometimes called super clone or 1:1, mirrors case dimensions closely and may accept genuine straps, though the movement remains a copy rather than an Omega calibre.
How should you evaluate a seller?
Ask for dated photographs of the actual unit, not catalogue renders, plus a short video of the seconds hand sweeping and the date flipping. Confirm the stated case diameter, crystal material, movement name and water resistance in writing. A seller who refuses close-ups of the caseback or the clasp is a seller to skip.
Are replica Constellation 131.20 watches legal?
Trademark law is the deciding factor. Selling counterfeit goods is illegal in the United States, and US Customs and Border Protection can seize and destroy imported counterfeits under 19 U.S.C. 1526. Personal possession is generally not prosecuted, but buying a replica does not transfer any Omega warranty, service or parts support.
Frequently asked questions
How much does a replica Constellation 131.20 cost?
Expect roughly $90 to $150 for entry grade, $180 to $280 for mid grade and $300 to $450 for top grade. Anything far below that range usually signals a quartz movement or a plated case.
Does a replica 131.20 hold value?
No. Replica watches have almost no resale market, and the genuine 131.20 keeps value through the Omega brand, box, papers and service history that a copy cannot provide.