Ronde Solo de Cartier watch, 42 mm, self-winding mechanical movement. Stainless steel case, beaded crown set with a cabochon-cut faux spinel, silver opal dial, blued-steel sword-shaped hands Sapphire crystal glass, fine-grain black leather strap, double adjustable folding buckle, calendar window at 3 o'clock. Case thickness: 8.36 mm, water-resistant to 3 bar (about 30 meters/100 feet)