<p><span class="h-card" translate="no"><a href="https://social.security.plumbing/@freddy" class="u-url mention">@<span>freddy</span></a></span> unfortunately, the straps on cheaper Casio watches aren’t the best and tend to wear out. The B640 has a metal strap though, so I’m surprised that wore out - my B640 seems ok, but granted, it doesn’t get a lot of wrist time.</p><p>My advice would be to get an aftermarket strap.</p>