I know this is not a new topic, but I have a peculiar slant on it. My wife has had the backs fall off SIX 38mm SS Apple Watches. Apple has replaced her watches five times. When they gave her the sixth one, they assured her that it wouldn't happen again, which caused me to assume that they had done something to correct the problem. Today, after she had the sixth watch for only three weeks, the back came off again while she was taking it off her wrist. My wife is extremely careful. The watch has never been exposed to water; she does not use any sun-tan lotion on her arms; she has never damaged the watch in any way. Has anyone else had the problem of having the backs of their Apple Watches fall off multiple times? I have not seen any reports of this on previous threads on the topic.