Opus Chronograph

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.

Features

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
Caliber C. 741 S, automatic, skeletonized

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 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"

Water resistance
10 bar( 100m )

WHY WE LOVE IT 

The skeletonized dial and movement of the elegant chronograph reveal deep insight into the fascinating world of a perfect mechanical watch.