CHALLENGE III Double Tourbillon Differentiel-S

CHALLENGE Tonneau-shaped, 53.70mm X 41mm

Materials: Blue Steel with rose Gold 5N components or Bicolor 5N Rose Gold.

Caseback: Open with sapphire crystal.

TECHNICAL SPECIFICATIONS
Movement
Calibre:    CVS8550, mechanical manual winding
Dimensions:    35.55mm x 36.06mm
Thickness :   10.10 mm
Jewels:    55 rubies
Number of Components:    387 components
Plates finishing:    Sand blasted
Bridges finishing:    Sand blasted, circular graining, bevelling and polished by hand
Barrels:    Four barrels in parallel placed on the main plate
Barrels Finishing:    Snail engraving
Tourbillons
Number of Components:    54 components per cage
Weight:    0.394 grams per cage
Dimension:    16.20 mm each cage
Rotation:    One rotation / 60 seconds
Balance:    Titanium, variable-inertia with mean-time titanium screws
Power Reserve:    60 hours
Frequency:    28’800 vph (4Hz) each tourbillon

SWISS MADE