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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

Chopard L.U.C Tourbillon Power Reserve

Partially verified

This gentleman's wristwatch is a limited edition piece from Chopard’s L.U.C collection, numbered 1 of 25 examples. The watch is housed in a palladium (0.950) case measuring approximately 40.5 mm in diameter, featuring a skeletonized dial with applied blue Roman numerals and indexes. Complications include a one-minute tourbillon regulator and an 8-day power reserve indicator positioned at 3 o'clock. The timepiece is powered by the manual-winding L.U.C. caliber 4TT 3N, which utilizes "Quattro technology"—a configuration based on two sets of two stacked barrels. The movement features an 18K gold main-plate and bridges, and is adjusted to heat, cold, isochronism, and 5 positions. It is certified by the C.O.S.C. and carries the Geneva Quality Hall Mark. The watch is worn on a brown crocodile leather strap with a platinum buckle and includes a sapphire-crystal case-back secured by eight screws.

Front view of the Chopard L.U.C Tourbillon Power Reserve, displaying the skeletonized dial and the tourbillon carriage.
Front view of the Chopard L.U.C Tourbillon Power Reserve, displaying the skeletonized dial and the tourbillon carriage. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
Chopard
Reference
161911
Catalogue / lot identifier
323
Source-reported date
circa 2007
Source-reported place
Switzerland
Source-reported serial
1 327 856

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The timepiece features a tonneau-shaped case crafted from 0.950 palladium. The case is fitted with a sapphire-crystal exhibition back, which is secured to the case body using eight screws. The watch measures approximately 40.5 mm in diameter.

The dial is partially skeletonized, displaying components of the movement beneath. It is set with blue applied Roman numerals and indices. The visual layout incorporates two complications: a one-minute tourbillon regulator positioned at the 6 o'clock mark and a power reserve indicator located at 3 o'clock, which displays the remaining energy of the manual-winding movement.

Evidence for this section
  • “Palladium (0.950), manual-winding, “tonneau”-shaped”
  • “sapphire-crystal case-back screwed by eight screws”
  • “partly skeleton dial with suspended applied blue Roman numerals and indexes”
  • “visible one-minute tourbillon regulator and 8-day power reserve indicator (3 o’clock)”

Movement and Technical Specifications

The watch is powered by the L.U.C. 4TT 3N caliber, a manual-winding movement. A distinguishing technical feature is the "Quattro technology," which employs two sets of two stacked mainspring barrels to achieve an extended power reserve. The main-plate and bridges are constructed from 18K gold.

The caliber is adjusted to heat, cold, isochronism, and 5 positions. It carries the Poinçon de Genève (Geneva Quality Hall Mark) and is a certified C.O.S.C. chronometer, operating at a frequency of 28,800 vibrations per hour.

Evidence for this section
  • “18K gold main-plate and bridges, “Quattro technology” based on two sets of two stacked barrels”
  • “adjusted to heat, cold, isochronism and 5 positions”
  • “Poinçon de Genève (Geneva Quality Hall Mark), certified chronometer (C.O.S.C.)”

Provenance and Documentation

This example is one of 25 pieces produced in this limited edition series.

Records indicate that the watch was originally sold on January 11, 2008.

Evidence for this section
  • “limited 01 / 25”
  • “Original certificate, certificate of limited edition, Geneva Quality Hall Mark certificate”
  • “The original certificate mentioned that this watch was sold on January 11, 2008.”
  • “Overhaul recommended, at buyer's expense”

Open research questions

  • What is the specific functional difference between the 8-day and 9-day power reserve durations mentioned in the source?
  • Does the 'tonneau-shaped' description in the source refer to the entire case geometry or specifically the bezel profile given the round appearance in photographs?

Source evidence

Recorded claims and source quotations for Chopard L.U.C Tourbillon Power Reserve
FieldSource-reported valueSource quotation
MaterialPalladium (0.950)“Palladium (0.950)”
Limited Edition1/25“LIMITED 1/25”
Movement CaliberL.U.C. 4TT 3N“Movement “L.U.C.”, 4TT 3N”
Case Number1 327 856“Case No. 1 327 856”
Movement Number108 972“Movement No. 108 972”
Weight252.3 gr. (approx.)“Weight 252.3 gr. (approx.)”
CertificationC.O.S.C. and Poinçon de Genève“Poinçon de Genève (Geneva Quality Hall Mark), certified chronometer (C.O.S.C.)”

Visible details

  • Skeletonized dial exposing parts of the movement.
  • Visible one-minute tourbillon carriage at the bottom of the dial.
  • Power reserve indicator graduated from 0 to 8 days.
  • Case back secured by eight visible screws.

Research qualifications

  • The source provides conflicting information regarding the power reserve, stating '8-day' in the text but '9-day' for the caliber specification.
  • The auction description recommends an overhaul at the buyer's expense.
  • Reference number is listed inconsistently as 161911 and 1611911-9001.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

CHOPARD REF. 161911, L.U.C.–LOUIS ULYSSE CHOPARD CHRONOMETER, PALLADIUM, LIMITED 1/25

Reviewed 2026-10-26 · Record 6c1392ff95

Terms in this record

Glossary explanations for terms named in this object’s record.

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