This is the third iteration of the Casio DW-5600E watch I've owned. Twenty years ago, I started using this particular model. I parted with one of them, and the other I was able to destroy (please don't take this as a criticism of the watch; I did my best). These are some pretty high-quality timepieces. They are reasonably priced, accurate enough, and long-lasting, all at the same time. It is not necessary to remove them even in the most extreme circumstances because, either they will survive the terrible circumstance (which is highly likely), or I will simply purchase new ones.