CHALLENGE case Tonneau-shaped, 53.70mm x 41mm x 13.35 mm

Materials Steel or Bronze Steel. Polished and satin-finished case, Cross of Saint Andrew.
Caseback Open with sapphire crystal.
Crystal Sapphire, none-reflecting coating 2 faces.
Water-resistance 100 meters

Screws Polished 5N Red gold, exclusive CVSTOS TECHNOLOGY pattern.
Crown Grain, screw decoration Cvstos. Screw-down, polished 5N Red Gold, Nitril insert.
Dial Metallic Structure, laser cut.

Indexes Super-Luminova treated.
Hands Pierced and Super-Luminova treated.

Calibre CVSTOS CVS 2600C hand wound openwork Tourbillon movement.
Functions Hour, minute.
Characteristics Flying Tourbillon, cage Ø 12mm, anti shock.
Power Reserve 60 hours.
Jewels 21
Frequency 18,000 vibrations per hour

Strap Alligator skin or quilted leather.