I have owned a very similar Citizen Diver watch since 1999.  The only thing I didn't like about it was the cost of replacing the battery every 2 years or so.  This new Eco-Drive has everything the other watch did plus the Eco-Drive system.  It is a great size, isn't too fancy, and keeps perfect time.  I sail and find this watch to be perfect....no worries about water or the occasional bang on a hard surface.  I'd buy again.