Challenge R-50
   

 

CHALLENGE-R 50 case Round-shaped, Ø 50mm
Materials Steel or 5N red gold. Polished and satin-finished case
Setting Versions set with diamonds available
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, rubber insert
Push-pieces Titanium grade 5, polished
Dial Sapphire, none-reflective coating, exclusive CVSTOS TECHNOLOGY decoration
Indexes Chromed and 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 In the same metal as the case, black alligator skin, black or white rubber, versions with links
Buckle Folding clasp