The short answer
A replica Breguet Tourbillon 3358 is a hand-wound tourbillon watch built to copy the Breguet Classique Tourbillon reference 3358. Almost every version on the market runs a Chinese-made tourbillon movement, most often a Seagull ST8000 series caliber or a close copy of it, inside a gold-plated or solid gold case between 35mm and 38mm wide. Expect to pay about $300 for a basic build and $1,500 to $3,000 for one with a solid gold case and a hand-finished movement. The movement decides the price, not the dial.
What the original 3358 is
The Breguet 3358 is a Classique tourbillon with a hand-wound movement, a coin-edge case band, straight lugs, and a guilloché dial. The tourbillon carriage is viewed through a sapphire case back on most examples rather than through an aperture in the dial. The case measures about 35mm to 36mm across in gold, and production numbers were low, so examples appear on the secondary market more often than at retail counters.
That layout matters for buyers of replicas. A correct copy needs a one-minute carriage, a thin profile, a closed guilloché dial, and a case band with a fine repeating pattern. Builders who skip those points produce a watch that reads as a generic tourbillon with a Breguet logo, not a 3358.
Movements used in replica builds
- Seagull ST8000 series: hand-wound, one-minute tourbillon, about 21,600 vibrations per hour, roughly 40 hours of reserve. The most common choice.
- Generic Chinese tourbillon calibers: similar layout at a lower price, with coarser finishing on the carriage and bridges.
- Reworked Swiss or German ebauche: rare, expensive, and the only route to a carriage that approaches original finishing.
Ask the seller for the caliber name and the beat rate before you pay. A carriage that completes one rotation in 60 seconds is correct. A carriage that spins faster or slower is a costume piece.
Points to check before you buy
- Measure the case. Ask for caliper photos. Anything above 38mm sits wrong on the wrist for a Classique reference.
- Confirm the carriage period with a video timed against a stopwatch.
- Inspect carriage finishing under magnification. Look for polished bevels on the cage arms and a smooth, even surface on the bridges.
- Check the guilloché pattern. It should be cut, not printed. Printed patterns look flat under raking light.
- Look at the hands. Breguet hands carry a hollow eccentric moon and a fine pommel tip. Blued steel should show a deep blue, not a painted finish.
- Run a fingernail along the case band fluting. Crisp, evenly spaced ridges are a sign of a milled case rather than a cast one.
- Check the crystal and case back for sapphire. Tap test and edge profile reveal mineral glass.
- Weigh the watch. A solid gold case adds noticeable heft over gold plating.
- Read the engraving. Serial fonts on the case back should be sharp and consistent with the reference.
Service and legal caveats
Chinese tourbillon movements need service every three to five years, and many watchmakers decline to work on them because parts are hard to source. Budget for that. On the legal side, a replica carries a protected trademark, and importing or reselling one can lead to seizure and forfeiture. Buy with that risk in mind, and keep the transaction records if you ship across a border.