Short Answer

A fake Cartier Calibre de Cartier is a copy of the 42 mm Calibre de Cartier that Cartier did not make. Genuine examples run the in-house 1904-PS MC, so every replica uses a third-party movement, usually a Miyota, a Seagull ST21, or a clone ETA 2824. The market splits into three tiers: quartz copies under $80, mid-grade automatics near $200, and super clones above $350. Judging one comes down to four things: case size, case thickness, dial printing, and the movement behind the caseback.

Specs to Hold the Copy Against

You cannot grade a replica without the real numbers in hand. The Calibre de Cartier family is consistent, which makes comparison simple.

  • Case diameter: 42 mm on the three-hand automatic, the chronograph, and the Diver
  • Thickness: about 11 mm on the three-hand automatic, more on the chronograph
  • Movement: 1904-PS MC, 27 jewels, 28,800 vph, 48-hour power reserve
  • Dial: large applied Roman XII, sword hands, date aperture at 3 o'clock
  • Crown: fluted steel with a blue cabochon at 3 o'clock
  • Diver: unidirectional rotating bezel rated to 300 m

How to Inspect a Replica Calibre de Cartier

Work through these checks in order. Each one isolates a single component so a failure is easy to trace.

  1. Measure the case across the bezel with digital calipers and confirm 42 mm.
  2. Measure the case thickness. A three-hand automatic over 13 mm holds a thick clone movement.
  3. Study the dial under 10x magnification and read the CARTIER signature and the SWISS MADE line at 6 o'clock.
  4. Examine the applied Roman XII for polished bevels and sharp inner angles.
  5. Look at the date aperture at 3 o'clock and check that it sits square to the minute track.
  6. Rotate the crown and inspect the blue cabochon for a flush, faceted stone rather than painted plastic.
  7. Remove the caseback and identify the movement, noting rotor decoration, perlage, and blued screws.
  8. Place the watch on a timegrapher and read the beat rate, looking for 28,800 vph and a daily rate inside plus or minus 10 seconds.
  9. Check the bracelet end-link fit against the lugs and the depth of the clasp engraving.
  10. Inspect the caseback engraving for crisp reference and serial numbers.

Red Flags

Any single item on this list points to a low-tier build, and several together mean you should walk away.

  • A seconds hand that ticks once per second, which means quartz
  • Case diameter off by more than 0.5 mm
  • A glued or painted cabochon that sits above the crown surface
  • Wrong numeral proportions or a flat stamped XII instead of an applied one
  • A Cartier-engraved rotor mounted on an obvious Miyota 8215
  • A 300 m rating claimed on a Diver with no caseback gasket
  • Seller photos that show the front of the watch only

What Each Tier Should Cost

Quartz copies run $40 to $80 and are costume pieces. Mid-tier automatics with a Seagull ST21 or clone 2824 run $150 to $250 and keep time well. Super clones with a decorated clone 1904-PS MC or a Swiss ETA run $350 to $550. Paying above $600 should buy a Swiss movement, a pressure test, and a written warranty. Ask for movement photos, a timegrapher readout, and a wrist shot with the crown signed before you send money.