What a fake Type XX 3820 is

A fake Type XX 3820 is a replica of the Breguet Type XX Transatlantique, reference 3820, a steel automatic chronograph Breguet built from the mid 1990s. The genuine watch uses a roughly 39 mm steel case with a black dial, luminous Arabic numerals, a date window and a Swiss automatic chronograph movement. Replicas arrive in three rough tiers. The bottom tier hides a quartz or basic automatic movement inside a thick, poorly finished case. The middle tier runs a 7750-family automatic chronograph and copies the dial layout. The top tier matches the case profile, dial print, hand shape and pusher feel close enough to pass at arm's length. Movement grade and case profile decide quality. The box, the papers and the story do not.

Details the replica must match

Breguet designed the Type XX for military and civilian pilots, so the reference has a specific look that is easy to get wrong. Check these points against reference photos before you commit to a purchase.

  • Case diameter near 39 mm, with a bezel that sits flat rather than domed.
  • Dial print that stays sharp under a loupe, including the Breguet signature and the reference text.
  • Arabic numerals with even lume fill and no overflow onto the dial surface.
  • Subdial spacing that matches the genuine layout, not stretched to fit a larger movement.
  • A date window cut square, with a font that matches the rest of the dial.

Inspection steps

  1. Measure the case across the bezel with digital calipers and compare the number to the reference spec.
  2. Place the watch on a flat surface and check that the caseback sits level, with no wobble.
  3. Read the dial with a 10x loupe and look for fuzzy edges, thick ink or misaligned text.
  4. Press the top pusher to start the chronograph and confirm the sweep hand starts with no jump.
  5. Press the bottom pusher to reset and check the hand snaps back to zero in one motion.
  6. Look at the hands from the side to verify the shape and the polish on the edges.
  7. Charge the lume with a flashlight and compare the glow color across dial and hands.
  8. Check the crown for a firm click at each position and no grinding when you wind it.
  9. Tap the crystal with a fingernail and listen for a dull plastic sound, which means mineral glass rather than sapphire.
  10. Weigh the watch on a kitchen scale and compare it with the weight listed for the genuine reference.

Movement grades

  1. Quartz: cheap, silent, and wrong for this reference. Avoid it.
  2. Basic Chinese automatic: runs, keeps rough time, and rarely services well.
  3. Asian 7750 clone: the common middle option, with a working chronograph and a familiar service path.
  4. Swiss ETA 7750: the strongest practical choice, with parts support at most watchmakers.

Replica versus genuine at a glance

  • Caseback engraving depth and font. Genuine stamps are crisp and even.
  • Pusher travel. Genuine pushers feel short and mechanical, not spongy.
  • Dial gloss. Genuine black dials read matte under direct light, not mirror bright.
  • Serial stamping. Replicas often reuse the same number across a production run.

Care after purchase

  1. Keep the watch away from strong magnets, including laptop speakers and tablet covers.
  2. Rinse the case with fresh water and a soft brush after heavy sweat exposure.
  3. Have the movement cleaned and lubricated every four to five years.
  4. Store it on a winder or wind it by hand twice a week if you wear it rarely.

Buying checklist

  • Ask for movement photos, not stock images.
  • Ask for a case measurement and a weight.
  • Confirm the crystal material in writing.
  • Confirm the return window before payment.
  • Skip any seller who refuses a live video of the running chronograph.