I have the clock for more than a week and it stinks terribly. After carrying ten minutes I could no longer bear the smell and have them removed. My wrist smelled then several hours even after the clock. Whether that is so healthy ... Now I have tried to cover up the smell with deodorant what five minutes to work, then came back the unpleasant odor. I will now leave the clock to unravel and hope the smell dissipates. The design in itself like it very much.