CHALLENGE II case, Tonneau-shaped, 53.70 mm x 41 mm
CHALLENGE II GT case, Tonneau-shaped, 59 mm x 45 mm
Calibre CVSTOS CVS350, Skeletonized, Self-winding mechanical movement, Black PVD treatment or rhodiated. Functions hour, minute, seconds in the center and skeletonized date disc. Power-Reserve 42 hours. 21 Jewels. Frequency 28,800 vibrations/hour.

MATERIALS Steel, Titanium Grade 5, Bicolor 5N Red Gold