Quartz chronograph watch, stainless steel case in shiny / brushed finishing, dim. ø 45 mm, tachymeter topring, screw crown, datary, mineral glass, stainless steel screw caseback, 50 meters water resistant, shiny stainless steel band, Miyota (CITIZEN) OS20 movement STRUCTURA M 7903.03 STRUCTURA M 7903.04