The catch securing the silver bank keeps coming open. I wear the watch lightly hugging my wrist but when I move my hand/forearm the clasp opens and the watch band slips off. I have attempted to keep the band loose and whilst it improves how often the clasp opens it only reduces the number of times and frequency. The last time it slipped off and landed on cement and the pin popped out.I put it back together, noting a slight deformity of the clasp, however the problem has become so frequent that I cannot wear the watch. I have a very small wrist the excess silver band tucks up under the bank and butts up against the watch face (underneath). 