Haven't had chance to put it through the real test yet...a summer of surfing and fishing but I expect it will hold up well for several years from past experience with other G-Shock products.  It's a little bulkier than I expected and will take some getting used to.  Setting the tides to my location was more complicated than I expected.  With little direction from the manual, I had to do some searching on the internet to find out what I need to do and had to make some basic calculations using data from NOAA's website to set the tides to VB.