This clock, the first two weeks worked flawlessly. After uncontrolled constantly flashed the light, the functions (date, heart rate measurement, etc) could be called difficult, because repeatedly occurred other indicators. The clock was totally confused, how ??? (Screw clock, remove Battereie, reseating, and set clock new) Only a Mastereset managed the restart. Since then I'm happy again. I hope the issue is resolved.
