[itisit]

I'd be curious to see a proper signal map for this service. I've been the proud owner of a Casio Oceanus for a little over a year now. I can count on one hand the number of times the watch has synchronized via radio.

[tjohns]

Here you go: https://tf.nist.gov/stations/wwvbcoverage.htm

Keep in mind antenna placement matters with these clocks. Different parts of the room can have very different signal strengths. Away from other electronics and near a window is all better.

[ricc]

Yeah, the signal for this is rather weak so you would need to place your watch at least on a window's line of sight or, if it still doesn't work, right next to a window.