A fake Patek Philippe 5102 is a replica of the Patek Philippe 5102 Celestial. Patek Philippe made the original 5102 from 2002 to 2010. The watch has a sky chart that rotates once every 23 hours 56 minutes. It also has a moon phase. Fakes do not use the same movement. Most fakes cost between $200 and $2,000. Real 5102 watches sell for over $200,000 at auction.

Original 5102 Features

  • Caliber 240 LU CL C, self-winding
  • Sky chart rotates once every 23 hours 56 minutes
  • Moon phase accurate to one day in 122 years
  • Platinum case, 43.5 mm
  • Sapphire display back

Common Fake Features

  • Printed sky chart that does not rotate
  • Quartz or low-grade automatic movement
  • Stainless steel case with platinum plating
  • Weight is lower than original
  • Moon phase jumps instead of moving in one direction

Price Comparison

  • Real 5102: $200,000 to $400,000
  • Fake 5102: $200 to $2,000

How to Spot a Fake 5102

  1. Check the sky chart. On a real 5102, the chart rotates. On a fake, it is fixed.
  2. Check the moon phase. The real moon phase moves in one direction. Fakes may jump.
  3. Check the caseback. The real 5102 has a sapphire display back. The movement is finished.
  4. Check the weight. Platinum is heavy. Steel is light.
  5. Check the price. A real 5102 costs six figures. A fake costs hundreds.