Short answer
A fake Patek Philippe Grand Complications 5271G is a counterfeit watch built to copy a real Patek Philippe reference in the Grand Complications line. The genuine 5271 family is a perpetual calendar chronograph in platinum with a diamond-set bezel. Chinese replica makers copy the dial, the case shape and the bezel. They do not copy the movement, the metal or the gem setting.
Genuine 5271 baseline
Patek Philippe lists the 5271 in the Grand Complications collection. The design follows the 5270 perpetual calendar chronograph and adds a bezel set with baguette diamonds. Case metal is platinum. Case diameter is close to 41 mm on the versions Patek has published. The calibre is CH 29-535 PS Q, a manual-wind movement with a chronograph and a perpetual calendar. Functions include day, date, month, leap year, moon phase and day or night indication. Power reserve is about 65 hours. Patek prints exact specs per reference suffix, so 5271/100P and 5271/11P differ in dial, diamond count and case detail. Confirm the catalog entry before any comparison.
What the copies use
- Case: stainless steel, sometimes 316L, with platinum-color plating or polish. A steel case weighs less than a platinum case of the same size.
- Movement: most copies pair a Seagull ST19 chronograph base with a calendar module. Some use quartz under a decorated plate.
- Calendar: chronograph and date often run. True perpetual logic, with month lengths and the 2100 leap rule, is rare in copies. Some dials print calendar text that never moves.
- Stones: cubic zirconia or lab-grown stones replace the diamonds Patek documents. No brand gem certificate and no service papers come with the watch.
- Markings: caseback engraving and hallmarks. Genuine platinum carries a Pt950 hallmark. Copies often omit it or strike it in the wrong spot.
Price gap
Genuine 5271 watches change hands on the secondary market at six figures in US dollars, set by auction results and dealer listings. Replica listings on Chinese and reseller sites run from about $200 to $800 for the 5271 look. The gap tracks movement cost, metal cost and labor. It is not a discount on the same object.
Legal status in the US
US law treats a counterfeit watch as counterfeit goods. Trafficking carries up to 10 years in prison for a first offense under 18 U.S.C. 2320, plus fines up to $2,000,000 for an individual. US Customs and Border Protection seizes and destroys counterfeit shipments at import. A buyer who imports one risks seizure and loses the money paid. Trademark holders can also file civil claims against sellers and importers.
Checklist for a watch in hand
- Weigh it. Platinum is dense. A 41 mm platinum case feels heavy for its size. Steel copies do not.
- Read the caseback. Look for Pt950, the reference number and the movement number.
- Set the date past a month end. A perpetual calendar moves from 30 to 1 on its own. A simple module needs manual correction.
- Ask for gem paperwork and the original Patek certificate. Copies have neither.
What is not known
No public test data covers long-term accuracy or service life for 5271 copy movements. Replica sellers publish no serial numbers, no service network and no warranty that a watchmaker will honor. Resale value for a copy sits close to zero.