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Movement tier: unclassified · caliber Chopard Cal. 1.96: in-house manual-wind flyback chronograph, 28,800bph, 65h PR; used in LUC XPF; COSC-certified; column-wheel flyback mechanism; Geneva Seal holder · 65h power reserve (2.7 days)
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.
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The L.U.C XPF is a flyback chronograph in the ultra-thin XPS case family, carrying both the Geneva Seal and COSC certification. Cal. 1.96 is a manual-wind caliber, making it the only L.U.C reference in this guide without the micro-rotor. A caseback showing a rotor is immediately incorrect.
Known reproduction risks
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LOW
L.U.C XPF replicas are rare. The manual-wind flyback with dual certification is among the most complex targets in the Chopard catalog.
Rotor visible through caseback on a stated manual-wind XPF
Flyback function absent -- chronograph that stops rather than flyback-resets
Movement finishing without Geneva Seal hand-work quality under magnification
Case thickness inconsistent with the XPS family ultra-thin profile
Dial variants by era
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Era
Description
Identifiers
Current production L.U.C XPF
Flyback chronograph in the XPS case. Manual wind. Two-register chronograph layout with running seconds sub-dial and chronograph minute counter.
Thin case consistent with the XPS family, though slightly thicker than the time-only XPS due to the chronograph mechanism
Two chronograph pushers at 2 and 4 o'clock integrated into the case
"L.U.C XPF" or equivalent text on the dial
"Flyback" text on the dial indicating the flyback function
No visible rotor through the caseback -- Cal. 1.96 is manual-wind
Two sub-dial registers for running seconds and elapsed minutes
Service part flags
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Manual-wind confirmation
Original: Cal. 1.96 is a manual-wind movement. There is no rotor. The exhibition caseback will show the full movement plates without any rotor obscuring them. The crown winds the movement directly, with a perceptible increase in crown resistance as the mainspring approaches full wind.
Replacement tells
Any rotor visible through the exhibition caseback on a stated XPF -- this indicates a movement swap to an automatic caliber entirely
Crown that winds with no resistance regardless of power reserve level, suggesting a broken mainspring or coupling
Flyback function
Original: Same flyback principle as the Alpine Eagle XL Chrono: pressing reset while running instantly resets and restarts. A non-flyback movement presents differently.
Replacement tells
Chronograph that requires a stop then reset then restart sequence rather than flyback instant reset-and-start
Reset that moves the seconds hand in two steps rather than a single snap to 12:00
Dual certification
Original: Cal. 1.96 carries both the Geneva Seal and COSC chronometric certification. Both are reflected in the movement finishing and rate performance.
Replacement tells
Movement finishing under magnification that shows machine-uniform chamfers without hand-work variability, inconsistent with the Geneva Seal standard
Rate significantly outside the COSC -4/+6 seconds per day standard on a well-maintained example
Case back markings
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Current production
Exhibition caseback displaying Cal. 1.96
No rotor visible -- full movement plate display confirms manual-wind architecture
Geneva Seal mark on the movement
COSC reference on the movement or documentation
"Chopard" and "L.U.C" on the movement plate
Reference 161932-5001 on the case band
Movement tells
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Cal. 1.96 is a manual-wind flyback chronograph at 28,800bph with 65-hour power reserve. A fully wound XPF should sustain accurate timekeeping for the full 65-hour reserve.
Flyback chronograph mechanisms are sensitive to correct lubrication of the reset lever return spring. A sluggish or partial flyback is almost always a lubrication issue at service.
Geneva Seal requires hand-chamfered edges, polished anglages, and surfaces prepared to standard. Under magnification, the XPF movement should show non-uniform bevel widths characteristic of hand-finishing.
COSC certification means the movement was tested to the -4/+6 seconds per day standard as a movement before casing. A timegrapher check confirms the movement has not drifted significantly from that standard.
