My boyfriend had one of these for about 6 years and it was still working fine but the strap was wearing through and the batteries were one by one (there are 5) failing, so I wanted a replacement for him. I found others that looked a bit prettier but none of them had ALL the functions that this one does and in the end I just went for a straight replacement. I gave him the option of choosing one of the others - I could have returned it, unopened, if he'd wanted - but he didn't hesitate for a second. He loved the previous one and is delighted to have the same again. It goes in the sea, the shower, the sand etc and stays waterproof. It is invaluable for the tide chart and we've just rediscovered the snazzy night-time mode which puts the light on only when you tilt the watch towards your face. Cool.
Thoroughly recommended if what you are after is a functional watch, with tides, compass, temperature, alarms etc... Oh and it also tells the time and date :o)