Citizen Eco-Drive Chronograph CA4500A chronograph that means business without making a fuss about it. The Citizen CA4500 is the kind of watch that earns its place on your wrist through sheer credibility. A 44mm stainless steel case. Three precision sub dials. A Base 30 Pulsation scale etched around the inner bezel. Bold Arabic numerals that are readable at a glance. This is a proper tool watch dressed in a way that works just as well at a boardroom table as it does trackside. Three