Cvstos Challenge III GT Chronograph-S Black & Red Men’s Watch

Case: Black Steel Tonneau-shaped 59mm X 45mm Caseback: Open with sapphire crystal Crystal: Sapphire non-reflecting coating Water-resistance: 100 meters Dial: Sapphire, Exclusive CVSTOS TECHNOLOGY decoration Indexes: Super-Luminova treated Hands: Pierced and Super-Luminova treated Calibre: CVSTOS 577 automatic chronograph Functions: Chronograph, power-reserve indicator, date Power Reserve: 42 hours minimum Strap: Rubber with Buckle Folding clasp