42 mm stainless steel case, 11.60 mm thick, stainless steel back, sapphire crystal with anti-reflective treatment, caliber CO 984 automatic movement with chronograph, hour & minute, date, small second, approximately 42 hour of power reserve, black crocodile leather strap, triple folding buckle. Water resistant to 30 m. (Old reference 984.101.20/0F01 AB20).