Swiss watchmakers Breitling originally conceptualized their line of watches for the aviation industry. This latest Emergency Collection is distinct return to Breitling’s roots. Each Emergency Collection watch is outfitted with a micro-transmitter which broadcasts on the 121.5 MHz aircraft emergency frequency. In the event of crash landing or accident, the watch can emit a signal to identify its position. A special cap must be unscrewed followed by the extension of an antenna.