Had my Wave Ceptor for nearly four years now. Has never let me down once. It seems virtually indestructible. I've scraped it, dropped it, knocked it, yet it never stops working, durable case. Typical Casio reliability.
The accuracy of the time signal is absolutely bang on. It is in exact sequence with the Greenwich Time Signal (The BBC pips / MSF time signal) NB:- If you are listening to DAB radio the pips are about a second slower than they should be due to technical reasons with digital broadcasts, so if your waveceptor beeps the hour alarm before the pips have finished that is why!.
Some great features, world time, stop watch, alarm, decent "illuminator" backlight display, water resistant. Can only recommend, not the prettiest watch in the world, but I have to say I appreciate its utilitarian reliability durability and accuracy.