Novelty radio with clock/calculator

[electroking]

Here is a picture (from my scanner) of a small radio I picked yesterday
in a recycle bin. Apparently was thrown away becauses the batteries
were drained. It includes a rather thin sounding AM/FM radio (mono
sound is OK in stereo headphones though), and an alarm clock and
calculator combo using the large LCD display. The two units are not
linked, and they use different batteries (two AAA for radio, two AG13
button cells for clock). This was distributed as a bonus by a local
book club (Québec Loisirs), the logo is on the back.

I managed to set the clock and calendar (goes from 1900 to 2099),
but there seems to be a way to set the local time zone so that the
keys can be used to momentarily display the time in a different zone,
using the city names shown. I have to figure out how to do this.

Does anyone know anything about this model?