The short answer

A replica Type XX 3820BR is a copy of the Breguet Type XX Transatlantique reference 3820 in 18k rose gold. The genuine watch is a roughly 39mm automatic flyback chronograph with a rotating bezel, three registers, and a date display. Replicas copy the case shape, dial layout, and hand set, but they use gold plated base metal instead of solid rose gold and a mass produced chronograph movement instead of the Breguet caliber. Expect to pay about $250 for a quartz or low tier build and $500 to $800 for a high grade automatic with heavy gold wrapping. Any listing that claims solid 18k gold or genuine Breguet movement parts is false.

What reference 3820BR actually is

Breguet stamps a two letter metal code at the end of each reference. BR means 18k rose gold, BA means yellow gold, BB means white gold, and ST means stainless steel. The 3820BR is therefore the rose gold version of the Type XX Transatlantique, a flyback chronograph Breguet sold through the 2000s.

The Transatlantique variant differs from the earlier Type XX in two visible ways: it has a date window and a rotating bezel with a triangle marker that pilots used for elapsed time and heading work. The dial carries a running seconds register, a 30 minute counter, a 12 hour counter, and applied numerals or baton markers depending on the dial variant. Case size sits near 39mm with a thickness around 13mm to 14mm.

Real examples in rose gold trade well into five figures on the secondary market. That price gap is the entire reason a replica category exists for this reference.

Movement tiers you will see

  • Quartz: Cheap, thin, and easy to spot because the chronograph seconds hand ticks instead of sweeping. Skip it.
  • Asian 7750 automatic: The standard replica chronograph movement. It gives a sweeping seconds hand and working flyback style pushers. It is thicker than the original, which pushes case thickness past 14mm.
  • Decorated 7750: Same movement with engraved and striped rotor and bridges to imitate Breguet finishing. Better visual match, same mechanical limits.
  • Clone or Swiss sourced 7750: The top tier. Smoother pusher feel, more stable timekeeping, and a higher price.

Gold finish options

  1. PVD coating: Thin, wears off at the lugs and caseback within months. Lowest cost.
  2. Electroplating at 2.5 to 5 microns: Acceptable color match at first, then fading at contact points.
  3. Gold wrapping at 10 to 20 microns: The most durable replica option. Color holds up better and the case has a warmer tone in daylight.

Ask the seller which method is used and how thick the layer is. A vague answer means PVD.

How to check a listing before you pay

  1. Ask for the case diameter and thickness in millimeters, not photos alone.
  2. Request a photo of the caseback interior so you can see whether the movement is a decorated 7750 or a quartz blank.
  3. Check subdial spacing. On the original, the 12 hour counter sits at 6 o'clock and the date sits inside the same zone. Misaligned spacing is the most common replica flaw.
  4. Confirm the bezel turns with firm detents and the triangle marker lines up at 12.
  5. Ask for a running video with the chronograph started, stopped, and reset three times.
  6. Verify the strap hardware. Rose gold tone on the clasp should match the case exactly.
  7. Confirm the return window and the payment method in writing before sending funds.

Common tells on a 3820BR replica

  • Caseback engraving that is shallow, off center, or uses the wrong reference sequence.
  • Printed dial text that is thicker than the original and blurs at the edges.
  • Gold tone that leans orange under indoor light.
  • Pushers that feel gritty or need force to engage.
  • A case that sits too tall on the wrist because of the 7750 movement.

Legal and authenticity notes

Counterfeit trademarked goods are illegal to import into the United States and shipments can be seized by customs. Selling a replica while presenting it as a genuine Breguet is trademark infringement and fraud. Keep that boundary clear in any transaction, and never treat replica paperwork or boxes as proof of authenticity. If you want a genuine Type XX Transatlantique, buy from a dealer who provides service records and an independent authentication report.