Challenge Chrono II
   

 

CHALLENGE case Tonneau-shaped, 53.70mm X 41mm

Case Polished,  bead-blasted pockets.
Caseback Open with sapphire crystal.
Crystal
Sapphire, none-reflecting coating.
Water-resistance
100 meters

Screws Polished titanium grade 5, exclusive CVSTOS TECHNOLOGY pattern.
Crown Screw-down, polished titanium grade 5 or red gold, rubber insert.
Push-pieces Titanium grade 5.
Dial Arabic numerals, CVSTOS TECHNOLOGY exclusive design. Anti-reflective crystal sapphire.
Indexes Super-Luminova treated
Hands Pierced, chromed and Super-Luminova treated

Calibre CVSTOS 577 Automatic chronograph
Functions Chronograph, power-reserve indicator, date
Power-reserve 42 hours
Jewels 25
Rotor Exclusive CVSTOS TUNGSTEN 88 & TITANIUM TECHNOLOGY alloy
Frequency 28,800 vibrations per hour

Bracelet or Strap Alligator skin or rubber.
Buckle Folding clasp