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The 2020 version of the exceptionally complex 300-part masterpiece Opus Chronograph – which in 1995 advanced the skeletonising chapter at Chronoswiss – has been thoroughly updated. It now offers a modern geometry with a 41-millimetre case and shorter lugs.
41 mm
10 bar
(100 m)
Caliber C.741S
automatic
46 h
Opus Chronograph
CH-7543.1S-SI
The skeletonized dial and movement of the elegant chronograph reveal deep insight into the fascinating world of a perfect mechanical watch.
Availability: Available
11'400,00
CHF
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Beat Weinmann
Call now:
+41 (0) 79 232 63 15
Specifications
Case
Material
Stainless steel
Number of parts
38
Case back
Screw-down case back with satin finish and sapphire crystal
Diameter
41
Height
14.8 mm
Band width
21
Finish
Partly polished, partly with satin finish
Bezel
Polished screw-down bezel with full thread and side knurling with curved, double coated anti-reflective sapphire crystal
Movement
Movement
Caliber C.301, automatic
Frequency
4 Hz (28,800 A/h)
Power reserve
Approx. 46 hours
Number of jewels
25
Finish
Polished pallet lever, escape wheel and screws; bridges and plates with perlage
Rotor
Skeletonized and rhodium-plated rotor with Côtes de Genève and ball bearing
Dial
Dial material
Solid sterling silver (925), skeletonized
Displays
Central hours and minutes, small seconds, central chronograph seconds, 30-minute counter, 12-hour counter, analog date
Design of hands
Thermally blued, diamond cut and curved; minute hand bent by hand
Shape of hands
"Breguet Losange"
Strap & buckle
Strap material
Louisiana alligator leather
Type of buckle
Folding clasp
Characteristics
Water resistance
10 bar( 100m )
Special features
Skeletonized dial
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