Short answer
The replica Duomètre à Sphérotourbillon copies a Jaeger-LeCoultre watch released in 2012. Genuine examples carry a six-figure price. Replica listings run from about $250 to $1,500. No replica uses the Jaeger-LeCoultre caliber 382. No replica reproduces the dual-wing power system.
Genuine specs to compare against
- Caliber 382, manual wind.
- Double-Wing design: two barrels, two gear trains, two power reserves. Each reserve runs about 50 hours.
- Sphérotourbillon: a tourbillon carriage that turns on two axes. The outer axis tilts 20 degrees.
- Case diameter: 42 mm. Metals: rose gold and platinum.
- The dial shows time on an offset sub-dial with a separate small seconds display.
Not every dial variant is documented in public sources. Compare a listing photo against reference photos from the maker before you pay.
What replicas change
Three parts differ from the original.
- Movement. Most replicas use a single-barrel Chinese or Japanese mechanical movement. That removes the dual-wing function the name refers to.
- Tourbillon. Single-axis tourbillons appear in the $400 to $900 range. A true two-axis carriage at a 20 degree tilt is rare and costly. Some listings put a decorative bridge over an open balance wheel and call it a tourbillon. Ask for video.
- Case and finish. Replica cases often measure 1 mm to 3 mm thicker than the 42 mm spec. Dial printing, hands, and screw heads show the largest gaps at low prices.
Swiss Made claims
Swiss law ties the Swiss Made label to Swiss production costs and Swiss assembly steps. A watch made outside Switzerland does not qualify. Treat any Swiss made replica label as a marketing term with no legal weight.
Checks before you buy
- Ask the movement name, jewel count, and beat rate.
- Ask for case diameter and thickness in millimeters.
- Ask for a video with the seconds hand and tourbillon in motion.
- Ask about warranty length and the return window.
- Ask for the crystal material: sapphire or mineral glass.
- Confirm the payment method offers buyer protection.
Price bands
Under $300: automatic movement, no tourbillon, mineral glass, plated case. $300 to $700: single-axis tourbillon, sapphire crystal on some listings. $700 to $1,500: better case finishing, closer dial fonts, smoother tourbillon cage. Above $1,500 the replica market overlaps with entry-level genuine mechanical watches.
What is unknown
Factory names, production totals, and movement serial data for this model are not public. No independent lab publishes test results on replica Duomètre à Sphérotourbillon samples. Any claim about exact origin comes from the seller, not from a verifiable record.