Hello Puretime, I just recently purchased 2 watches, rolex yatchmaster and cartier ballon bleu. The rolex works perfectly fine, keeping time and everything but the cartier stop working after 5 days. This is very embarrassing because I had to convince my wife so much that this is the best rep NWBIG (she is always against buying rep). My wife wears that watch the whole day, only take it off at night, then in the next day, it was a few hours late, I told her maybe it wasn’t winded enough. Next day, it happened again, I tried to convine myself give it time to see what going on and today it just stop working. So puretime staff, please let me know what do I have to do?