I've had this watch a couple of years (mine is actually a W-96H), but will never get to test the 10-year battery guaranty, since the strap broke way too soon. Everything else was OK to excellent. Kept excellent time. Time and day were easy to read (only fair for the date). The light made it readable at night. Survived swimming unscathed. Usable stopwatch. Crystal has held up without much scratching. Plastic case was strong enough, but the finish was only fair: the silver/gray finish has become obviously worn.I'm disappointed that the band broke so soon. Even for the reasonable price of this model, I expected longer life. Amazon sells replacement band for $13; whole watch for $17! Take your pick. Whichever you buy, the lifetime will probably be short.I chose theCasio Men's A168W-1 Electro Luminescence Digital Bracelet Watch, with a metal band. Predecessors of this watch have given me years of good service.