CHALLENGE case, Tonneau-shaped, 53.70 mm x 41 mm
Calibre CVSTOS CVS556 SPRT, Self-winding mechanical movement, Rhodiated, Tungsten alloy rotor. Functions Chronograph, hour, minute, in-line day/date. Power-Reserve 42 hours. 21 Jewels. Frequency 28,800 vibrations/hour.
MATERIALS: Titanium Grade 5