41mm 18K rose gold case, interchangeable full and sapphire-crystal back, silvery opaline dial with gold applied hour markers, caliber CH 29-535 PS Q manually wound movement with central chronograph hand and instantaneous 30-minute counter, perpetual calendar, day, month, leap year and day/night display in apertures, date by hand, seconds subdial, tachymeter scale, moon phases, approximately 65 hours of power reserve, dark brown alligator strap with square scales, fold-over buckle. Water resistant to 30 m.