Engineered for Precision. Worn with Confidence. The AT8040 Series represents the pinnacle of CITIZEN's innovation, combining advanced technology with the elegance of luxury and performance. These slimline, Eco-Drive-powered timepieces feature Radio-Controlled accuracy and are crafted with Super Titanium™ cases and matching bracelets for exceptional durability. Key features include a perpetual calendar, 26-city world time, a three-register chronograph dial, power reserve display, charge level indicator with overcharge prevention, sapphire crystal, and water resistance up to 100 meters. (Please note that the radio-controlled functionality will not work in Australia due to the absence of radio transmitting stations within range. These stations are exclusive to four regions: Europe, USA, China and Japan. However, this does not affect manual time adjustment. Please refer to your instruction manual for guidance.)