Chronoswiss Opus Chronograph Flag Replica Watch CH-7543.1S-BLSI

The mechanical clarity of the Opus Chronograph is achieved by carefully paring away all superfluous material, leaving nothing but a filigreed skeleton. The dial may be scarcely there after the careful and ingenious skeletonising process – but nevertheless the blue and silver subdial perimeters make a great impression.
Material
Stainless steel

Number of parts
23

Case back
Screw-down case back with satin finish and sapphire crystal

Diameter
41 mm

Height
12.7 mm

Band width
21 mm

Finish
Partly polished, partly with satin finish

Bezel
Polished screw-down bezel with side knurling and full thread. Curved, non-reflecting sapphire crystal.
Movement
Caliber C. 741 S, automatic, skeletonized

Frequency
4 Hz ( 28800 A/h )

Power reserve
Approx. 46 h

Number of jewels
25

Finish
Skeletonized and CVD-plated blue rotor with Côtes de Genève, ball bearing; polished pallet lever, escape wheel and screws; bridges and base plate with perlage

Rotor
Skeletonized and rhodium-plated blue rotor with Côtes de Genève and ball bearing
Dial material
Skeletonized, galvanic blue and silver

Displays
Central hours and minutes, small seconds, central chronograph seconds, 30-minute counter, 12-hour counter, analog date

Design of hands
Lacquered and curved; minute hand bent by hand

Shape of hands
"Breguet Losange"
Strap material
Louisiana alligator leather, hand-sewn

Type of buckle
Folding clasp
Water resistance
10 bar( 100m )

Special features
Skeletonized dial