Chronoswiss Sirius Uhren Replica Watch OPUS CHRONOGRAPH CH-7543.1S-SI

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

Bezel
Polished screw-down bezel with full thread and side knurling with curved, double coated anti-reflective sapphire crystal

Material
Stainless steel

Diameter
41

Height
12.7

Band width
21

Number of parts
38

Finish
Partly polished, partly with satin finish

Movement
Caliber C.301, automatic

Finish
Polished pallet lever, escape wheel and screws; bridges and plates with perlage

Frequency
4 Hz (28,800 A/h)

Power reserve
Approx. 46 hours

Number of jewels
25

Rotor
Skeletonized and rhodium-plated rotor with Côtes de Genève and ball bearingShape of hands
"Breguet Losange"

Design of hands
Thermally blued, diamond cut and curved; minute hand bent by hand

Dial material
Solid sterling silver (925), skeletonized

Displays
Central hours and minutes, small seconds, central chronograph seconds, 30-minute counter, 12-hour counter, analog dateType of buckle
Pin buckle bicolor

Strap material
Louisiana alligator leatherWater resistance
10 bar( 100m )

Special features
Skeletonized dial