A fake Patek Philippe Nautilus 5711 gives itself away on three checks you can run in under a minute: case thickness, dial printing, and the shape of the bezel bevel. The real 5711/1A is 40 mm wide and 8.3 mm thick in a one-piece steel case, while most copies run 9.5 mm to 11 mm thick because they need room for a thicker movement and a spacer ring. If the watch looks tall from the side and the date sits deep behind a plastic ring, it is a copy.
What is the Patek Philippe Nautilus 5711?
The 5711 is the steel Nautilus that Patek Philippe sold from 2006 to 2021. It carries a 40 mm octagonal bezel, an integrated bracelet, and a self-winding movement (calibre 324 S C at launch, later 26-330 S C). Retail sat near $35,000 in its final year, and secondary prices ran several times that before the reference was retired.
Gerald Genta drew the original Nautilus in 1976. The 5711 kept his porthole shape, the horizontal dial texture, and the thin profile that made the line famous.
How do you spot a fake Nautilus 5711?
Start with the side profile, then work through the finishing, the dial, and the movement. Each step narrows the grade of the copy in front of you.
Case thickness and side profile
Measure from caseback to crystal. A real 5711 sits at 8.3 mm and slides under a shirt cuff. Copies need extra height for a spacer ring, which pushes them past 9.5 mm, and that gap survives every other upgrade a factory makes.
Bezel bevels and brushing
The real bezel is satin-brushed on top with a mirror-polished bevel along the inner and outer edges. Fakes blur that line: the bevel runs too wide, too narrow, or bleeds into the brushed face. Run a fingernail along the edge. On the real watch you feel a hard step.
Dial printing and the date window
Genuine dial text uses raised, glossy lacquer that catches light at an angle. Copies use flat ink that looks matte or fuzzy under a loupe. The date window should be beveled and sit flush; on fakes it sits deep, cuts square, or comes framed with a white plastic ring.
Bracelet taper and clasp
The 5711 bracelet tapers in a smooth line from the lugs to the clasp, and the links curve to wrap the wrist. Replicas get the taper wrong or use links of even width that sit flat. Check the clasp engraving too. The Patek cross should be sharp and the fold-over should snap with weight behind it.
Movement and caseback
The 5711 has a sapphire display back showing a 21K gold rotor, Geneva stripes, and the Patek seal. Budget copies hide a quartz module or a decorated Miyota behind solid steel. If the back is closed, or the rotor spins with no weight, treat the watch as a low tier build.
Weight and balance
Steel is steel, so weight alone will not expose a good copy. Bad copies use plated brass cases and hollow bracelet links, which feel light and rattle when you shake them. A real 5711 has a dense feel that stays balanced on the wrist.
What does "first copy" mean in the replica market?
"First copy" is a trade term for the top grade of replica watches, above budget quartz and mid-range automatics. These builds copy the case lines, the dial color, and often a clone movement. They are not Patek Philippe watches and carry no warranty from the brand.
- Budget tier ($50 to $150): quartz or basic automatic, plated cases, closed caseback.
- Mid tier ($200 to $400): automatic movement, better dial print, still thick at the case.
- First copy ($500 to $1,200): clone movement, correct thickness target, sapphire crystal, detailed bracelet.
Price tiers shift by seller and by batch. Ask what movement sits inside before you compare two listings.
Which Nautilus references get copied most?
- 5711/1A-010: blue dial, the reference that ran from 2006 into 2019.
- 5711/1A-014: olive green dial, launched and retired in 2021.
- 5711/1P: platinum 40th anniversary piece from 2016, made in small numbers.
- 5712/1A: steel case with power reserve, date, and moon phase subdials.
Blue dial 5711s draw the most copies. Green and platinum versions come second because the dial finishes cost more to match.
Are first copy watches legal in the US?
Owning a counterfeit watch is not a federal crime in the United States. Importing one is prohibited, and selling one as genuine is where the law bites: 18 U.S.C. Section 2320 covers trafficking in counterfeit goods, and Customs and Border Protection can seize shipments at the border. Never sell or ship a replica as a real Patek Philippe.
Pre-purchase checklist for a first copy 5711
- Ask for a side profile photo with a caliper or ruler against the case.
- Request a short video showing the second hand sweep and a date change.
- Confirm the movement type in writing (clone, Miyota, or quartz).
- Check date wheel alignment and dial print in a macro photo.
- Read the return policy before you pay.
Frequently asked questions
How much does a fake Patek Philippe Nautilus 5711 cost?
Budget copies sell for $50 to $150, mid-tier automatics for $200 to $400, and first copy builds with a clone movement for $500 to $1,200. Real 5711s trade in six figures, so any "new in box" 5711 under $25,000 is a fake.
Can a watchmaker tell a fake 5711 from the outside?
A trained watchmaker spots the case thickness and the finishing in seconds, and opening the back confirms it. Patek Philippe service centers check the movement serial against the archive, which no replica carries. A good fake still fails that step.
Do fake Nautilus watches hold value?
No. Replicas lose most of their resale value, and the brand will not service them. Treat the cost as money spent on a look, not an investment.
What is the fastest giveaway?
Case thickness. Judge a fake Nautilus 5711 by the side profile first, then the bezel bevel, the dial print, and the movement behind the sapphire back. Tiers and prices vary, but the ratio of height to width tells you the grade before you ever open the case.