This watch is part of Promaster Land collection. Features a radio-controlled time-keeping function to capture a time signal in four areas around the world and automatically adjust the time. Fitted with a 1/1 second chronograph that can measure up to 60 minutes, an aviator slide rule and a world time function for instant switching to the time of 24 cities, this is a pilots watch with multi-functions and a high level of practical utility. Featuring sleek blue dial with sapphire crystal glass and 200 meter water resistance, this watch is definitely a winner. Caliber E660.