What a lot of comprehensive replies and all really appreciated.

The model is a Roco 63377 and I bought it for €79 at Eurospoor. It looked brand new in original box. The plastic protective wrapping was missing so I suspected it to be a used model but I have been after a V60 for some time now and, as it was in pristine condition and I had enough money left from previous purchases, I bought it. When I opened the loco at home I was surprised to see what I now know to be a decoder.

Thanks all

Rote Grüze schmeckt gut.