Glad you found it.
This model is not rare, and if you keep looking, you should be able to find one on eBay. Expect to pay £5 if tatty up to about £30 or more if pristine. It may also be branded as "SEC" or "Genalex":
https://i.ebayimg.com/images/g/ZSUAA...11d/s-l400.jpg
A presentable-but-unrestored one is often best value, if you can do the restoration yourself.
Be aware that the plastic numbers and their supporting square can sometimes be found horribly distorted. I'm not sure what causes it, possibly too much direct sunlight.
N.