The Breitling Emergency watch is a handy tool for pilots and aircrews. It has a built-in micro-transmitter that broadcasts on the 121.5 MHz aircraft emergency frequency. In case of a crash or forced landing, the watch will send out a signal for rescuers to locate. It works alongside the plane's own emergency equipment. Simply unscrew the protective cap and pull out the antenna to activate the transmitter. It will continue broadcasting for 48 hours. In ideal conditions, the signal can reach up to 160 kilometers (100 miles) for a search aircraft flying at 6,000 meters (about 20,000 feet). REF. E7632110/O500