Answer: a fake master grand complication is a replica of a high-horology watch such as the Patek Philippe Grandmaster Chime, sold with the claim that every complication works. In practice, most replicas in this category use a base automatic movement with added modules, and only a few dial functions operate. The rest are frozen, calendar-limited, or driven by the crown.

What Grand Complication Means

In watchmaking, a grand complication combines at least three complex mechanisms in one movement. The classic trio is a chronograph, a perpetual calendar, and a minute repeater. A great complication adds astronomical displays, split-seconds timing, or a tourbillon. Genuine examples from Patek Philippe, Vacheron Constantin, and Audemars Piguet take years to develop and cost more than most houses.

Which Functions a Replica Can Deliver

  • Time, date, and running seconds: reliable on almost every replica.
  • Chronograph: works on most, though the reset can feel soft.
  • Perpetual calendar: in most cases a simple annual or day-date layout with no leap-year logic.
  • Minute repeater: rarely functional; the slide often moves with no chime.
  • Tourbillon: a spinning carriage is common, but it is decoration, not a regulating cage.
  • Moonphase and sky charts: printed discs tied to the date wheel.

How to Inspect a Replica Grand Complication

  1. Count the pushers, crowns, and slides on the case, then match each one to a function the seller claims.
  2. Ask which display each subdial drives and what the watch does at month end.
  3. Request a video with sound that shows the repeater slide being pushed and the hammers striking.
  4. Set the watch to a 31-day month and watch the date roll over at midnight.
  5. Run the chronograph, stop it, and reset it to check that the hand returns to twelve.
  6. Measure case thickness with calipers and compare it to the genuine reference specification.
  7. Confirm the return window, payment method, and service policy in writing before you pay.

Limits to Expect

Finishing on replica bridges and levers is cosmetic. Screws are plated, jewel counts are drilled but not functional, and engraving does not match the genuine layout. A repeater needs hundreds of hand-fitted parts, so a working one at replica prices does not exist. Weight, thickness, and case proportion are the fastest tells.

Legal and Resale Reality

Counterfeit watches infringe trademarks and can be seized by customs. They hold no resale value and no maker will service them. Treat any purchase as a disposable item, not an investment, and check the import rules for your country before ordering.