L.U.C XP Tonneau

18-carat rose gold

The L.U.C XP Tonneau timepiece in 18-carat rose gold exemplifies one of the fundamental principles of Haute Horlogerie: a shaped case deserves a shaped calibre. The elegant equilibrium of its extra-thin 7.22 mm case houses the chronometer-certified L.U.C Calibre 97.03-L offering 65 hours of power reserve.
Ref. Number:
162294-5001

Specifications

FUNCTION(S):
stop seconds
INDICATION(S):
hours and minutes, small seconds, date
CERTIFICATION(S):
Chronometer certificate issued by the COSC
MOVEMENT:
L.U.C 97.03-L
TYPE OF WINDING:
self-winding mechanical movement
MOVEMENT DIMENSIONS:
28.15 x 27.60 mm
MOVEMENT THICKNESS:
3.30 mm
POWER RESERVE:
65 hours, L.U.C Twin Technology (two stacked barrels)
FREQUENCY:
4 Hz (28,800 vibrations per hour)
OSCILLATING WEIGHT:
22-carat gold
BALANCE WHEEL:
with three spokes
BALANCE SPRING:
flat
DECORATIONS ON MOVEMENT:
bridges adorned with Côtes de Genève, circular-grained mainplate
JEWELS:
29
NUMBER OF MOVEMENT PARTS:
197
MATERIAL:
18-carat rose gold
CASE DIMENSION(S):
40.00 x 37.00 mm
CASE THICKNESS:
7.22 mm
DIAL:
silver dial with sunburst satin-brushed motif
FRONT GLASS:
glareproofed scratch-resistant sapphire crystal
CASE-BACK:
see-through sapphire crystal
CROWN MATERIAL:
18-carat rose gold
WATER-RESISTANCE:
50 metres
STRAP:
brown alligator leather strap (matt) with hand sewn matching tones
BUCKLE MATERIAL:
18-carat rose gold
BUCKLE TYPE:
pin buckle
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Chopard Watch L.U.C XP Tonneau 18-carat rose gold

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Movement

Chopard Watch - L.U.C XP Tonneau 18-carat rose gold

L.U.C Calibre 97.03-L is a tonneau or barrel-shaped calibre. Shaped movements represent a difficult exercise in that designing them involves entirely revising the arrangement of the parts in order to match an unusual mainplate. But since one of the fundamental principles of Haute Horlogerie is to adapt the shape of the movement to the shape of the case, only the most prestigious manufactures have shaped movements in their range of technical resources, and Chopard Manufacture is no exception to this rule. L.U.C Calibre 97.03-L is an ultra-thin tonneau-shaped calibre measuring just 3.30 mm thick. Its bidirectional self-winding movement is equipped with a 22-carat gold micro-rotor, enabling it to be incorporated into the thickness of a movement that thereby remains as slim as ever. Thanks to its L.U.C Twin technology, it has a 65-hour power reserve, and its precision is accredited by a chronometer rating certificate issued by the Swiss Official Chronometer Testing Institute (COSC).
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