This is the reponse I got from Breitling Switzerland which is inaccurate
The Emergency watch is not a distress beacon and does not trigger an alarmfollowing a rescue mission. It is not designed to be captured by thesatellite system, only the 406 MHZ distress beacon is surely captured byCOSPAS-SARSAT - this has been like this for a number of years (false alarmsand coverage of frequency). The watch helps rescue teams (who continue to operate on 121.5 MHZ) tolocalize a person in distress after a rescue mission has been called for.It was never stated that the purpose of the watch is to be detected by anyplane flying above you whilst you have your antenna pulled and are waitingfor help. This was just one of the possibilities described on how a distresssituation might be detected and how help may be called. The watch is acomplementary life-saving device. Our understanding is that all planes should have a distress beacon on boardwhich operates on 406 MHZ, because this signal will definitely be capturedby COSPAS-SARSAT. So there is no further need that other planes detect youvia 121.5 MHZ if COSPAS-SARSAT does via 406 MHZ. This is what is describedin our hand book. This is why we say that our Emergency watch is acomplementary life-saving device.