There is no Patek Philippe Nautilus reference 6790. Patek Philippe has never catalogued a Nautilus with that number, so any listing sold as a "fake Patek Philippe Nautilus 6790" is a counterfeit attached to an invented reference, which is one of the clearest warning signs in the replica market. The number most likely comes from a typo, a seller mix-up, or a deliberate hook modeled on real references such as the 5990/1A, the 5980/1A, or the ladies' 7010.
Is 6790 a real Patek Philippe Nautilus reference?
No. The Nautilus line uses documented references, and 6790 is not among them. The number does not appear in the brand catalog, in auction archives, or in the Extract from the Archives service that verifies individual watches.
Genuine Nautilus references include:
- 3700/1A: the original 1976 steel Nautilus designed by Gerald Genta.
- 5711/1A: the flagship steel model produced until 2021, replaced by the 5811/1G in white gold.
- 5712, 5726, and 5740: moon phase, annual calendar, and perpetual calendar models.
- 5980/1A and 5990/1A: chronograph and travel time chronograph models.
- 7010 and 7118: quartz and automatic ladies' Nautilus models.
A 6790 label is therefore a seller invention, a transcription error, or a deliberate hook that makes an unbranded counterfeit sound like a documented product.
Why do counterfeit listings use reference numbers that do not exist?
Invented references help sellers dodge trademark filters and search takedowns while still trading on the Nautilus name. They also suggest a rare or unlisted variant, which discourages comparison shopping. When no genuine watch exists to compare against, a buyer cannot check specs, photos, or pricing against a real baseline.
What gives a counterfeit Nautilus away?
Movement
Genuine 5711 and 5811 watches run in-house calibers such as the 26-330 S C or 324 S C with a gold rotor and Patek Philippe Seal finishing. Counterfeits typically use Japanese or Chinese mass-produced movements dressed with engraved rotor plates. A rotor that is plated rather than solid gold, or a beat rate that does not match the caliber, is a hard stop.
Dial, date, and hand finishing
The Nautilus dial uses a horizontally embossed pattern with precise depth and clean alignment at the date window. Fakes often show a crooked date aperture, mismatched lume color, rough bevels on the hands, and a printed rather than applied logo.
Case, bracelet, and engraving
Real Nautilus cases measure about 8.3 mm thick on the 5711, and counterfeit cases run noticeably thicker to fit generic movements. Bracelet links should taper smoothly, feel flexible, and carry clean stamped hallmarks and reference codes on the clasp. Blurry laser engraving, a mismatched caseback number, or a missing movement number are common tells.
Papers and provenance
Authentic watches come with a Certificate of Origin and can be verified through Patek Philippe's Extract from the Archives, which lists the exact reference and production year. No extract will ever return 6790. Sellers who offer only a photo of a certificate, or who refuse a service-center inspection, are offering counterfeit goods.
What are the legal risks of buying or selling counterfeit watches?
Trafficking in counterfeit goods is a federal crime under 18 U.S.C. § 2320, with penalties that reach 10 years in prison for a first offense involving a counterfeit mark. Civil claims under the Lanham Act let the trademark owner recover statutory damages per counterfeit mark, plus attorney fees. U.S. Customs and Border Protection can seize and destroy counterfeit watches at the border, and a counterfeit carries no warranty, no service support, and effectively zero resale value.
FAQ
How much does a fake Nautilus 6790 cost?
Counterfeit Nautilus watches sell from roughly $100 to more than $1,000 depending on finish quality. Price is not a reliable test, because a high price on a fake does not make it genuine.
Can a counterfeit Nautilus be serviced by Patek Philippe?
No. Patek Philippe service centers refuse counterfeit watches and return them unrepaired. They will also decline to issue an Extract from the Archives for a reference that does not exist.
Is the 6790 number used by any other watch brand?
No major Swiss brand catalogues a Nautilus-style reference 6790. If a listing pairs that number with the Nautilus name, the listing describes a counterfeit.