On Wed, 08 Feb 2012 21:42:04 +0000
Basil Jet wrote:
It varies according to the weather and time of day.
http://ftp.casio.co.jp/pub/world_man.../en/qw5061.pdf contains a map
showing the reception range of Casio watches, although I couldn't get my
Casio to receive the Mainflingen signal in Exeter. I imagine Eurochron
watches have a similar range (for the Mainflingen signal only).

I used to have one of those casios (until like most casio watches it broke
after 2 years). It often had trouble picking up signals. But when you consider
that they have to fit a VLF antenna inside something watch sized it's fairly
easy to understand why.

B2003