Boasting a radio-controlled timekeeping function that captures signals from four regions worldwide to automatically adjust the time, this watch offers unparalleled convenience. Equipped with a precise 1/1 second chronograph capable of measuring up to 60 minutes, an aviator slide rule, and a world time function featuring 24 cities, it serves as a versatile pilot's watch with multifunctionality and practical utility. With its sleek black dial, sapphire crystal glass, and 200-meter water resistance, this timepiece is a definite winner. Note that the radio-controlled functionality is not operational in Australia due to the absence of transmitting stations within range, limited to Europe, USA, China, and Japan. Nonetheless, manual time adjustment remains unaffected. Refer to your instruction manual for further guidance. - Calibre G1502 - Chronograph - Promaster Land - Eco-Drive - Stainless Steel Case and Bracelet, with push button buckle - 45.9mm Case Size - Sapphire Crystal - 200 Meters Water Resistant