CHALLENGE case Tonneau-shaped, 53.70mm X 41mm
Materials Titanium grade 2. Polished and satin-finished case
Caseback Open with sapphire crystal Crystal Sapphire, none-reflecting coating Water-resistance 100 meters
Screws Polished titanium grade 5 with exclusive pattern
Crown Screw-down with releasable mechanism, polished titanium grade 5 and rubber insert
Dial Pierced, sapphire, none-reflective coating, exclusive CVSTOS TECHNOLOGY decoration
Indexes Chromed and Super-Luminova treated
Hands Pierced, chromed and Super-Luminova treated
Calibre CVSTOS 76510 hand wound openwork Minute Repeater and Tourbillon movement
Functions Hour, minute and "3 X 20 Seconds" indicator. Minute Repeater mechanism chimes hours, quarters and minutes on demand.
Chime mechanism function indicator.
Characteristics Minute Repeater and flying Tourbillon, cage Ø 12mm
Power-reserve 60 hours
Frequency 18,000 vibrations per hour
Strap Black alligator skin or rubber strap
Buckle Folding clasp