This timepiece is a distinguished member of the Promaster Land collection, renowned for its advanced features tailored for pilots. It boasts a radio-controlled time-keeping feature capable of capturing signals from four global regions to automatically adjust time. Additionally, it includes a precise 1/1 second chronograph with a 60-minute capacity, an aviator slide rule, and a world time function for swift switching among 24 cities. Enhanced with a sleek black dial and bracelet, sapphire crystal glass, and 200 meters water resistance, this watch is a standout choice. (Note: Radio-controlled functionality is unavailable in Australia due to the absence of transmitting stations within range.) Please consult the instruction manual for manual time adjustment instructions. Caliber E660. - Calibre E660 - Promaster Land - Chronograph - Eco-Drive - Stainless Steel Case and Bracelet - 44.6mm Case Size - Sapphire Crystal - 200 Meters Water Resistant