Short Answer
A replica Breguet 3890 is a copy of a Breguet Type XX chronograph. The Type XX line was built for the French naval air force and later sold to civilians. Top-tier replicas use one of three movements: a Seagull ST19 hand-wound chronograph, an Asia 7750 automatic chronograph, or a quartz module. Movement choice drives the price more than case finish does. Ask for a movement photo before you pay.
What the 3890 Reference Covers
Published catalogs disagree on the 3890 variant. Some listings tie it to the Type XX Transatlantique, a steel chronograph with a 39mm case and a chronograph layout of 30-minute counter, 12-hour counter, and small seconds. Others treat 3890 as a market code for a Type XX sold in one region. Buyer-side reference data on this number is thin, so treat any listing that claims a single fixed specification as unverified.
Two steps remove most of the guesswork. Ask the seller for the case diameter in millimeters. Ask for a dial photo with the pushers visible. Genuine Type XX dials put the 30-minute counter at 3, the 12-hour counter at 6, and small seconds at 9. Pushers sit at 2 and 4. A copy with subdials in other positions belongs to a different design.
Movement Options
- Seagull ST19: hand wound, 21,600 vph, about 40 hours of reserve, column wheel. Thin case profile. Crisp pusher feel.
- Asia 7750: automatic, 28,800 vph, about 42 hours of reserve. Rotor wind. Case runs thicker to fit the module.
- Quartz: seconds hand ticks once per second. Subdials may be decorative. Lowest cost, no service interval.
Genuine Type XX watches run on Breguet calibres derived from Lemania chronograph designs. No replica movement matches that construction or that service network.
Case, Dial, and Bezel Checks
- Case diameter. Genuine Type XX cases measure 39mm across. Copies run 39mm to 42mm. Measure the listing photo against a known object.
- Bezel action. A 60-minute bezel needs 60 click positions, or a smooth friction turn with no rattle. A bezel with 12 clicks is a tell.
- Date window. Position and numeral font change with the variant. Compare against a photo of the same dial layout, not a different Type XX.
- Caseback engraving. Stamped steel shows depth. Laser etching looks flat and pale under side light. Serial and reference stamps vary between batches.
- Crystal. Genuine watches use sapphire with anti-reflective coating. Mineral glass scratches and shows a blue or green cast.
What Replicas Get Wrong
Lume on replica dials is weak in most batches. C3 and BGW9 are the two compounds sellers name. Water resistance is the biggest gap. The genuine Transatlantique carries a 100m rating. Replica case gaskets are not pressure tested, so keep the watch out of pools and showers. Crown logo stamping and pusher threads are the next two weak points. Stripped pusher threads kill a chronograph.
Buying Checklist
- Movement name and photo
- Case diameter in millimeters
- Crystal material
- Strap and clasp photos
- Return window in writing
- Payment method with a dispute process
Legal and Practical Note
Breguet is a trademark held within the Swatch Group. Importing counterfeit watches into the United States is prohibited, and US Customs and Border Protection can seize shipments. A replica carries no Breguet warranty, no Breguet service, and no factory parts support. Servicing a replica chronograph means sourcing parts from the same supply channel that built it.