Currently on ebay Can wea assume that the inner numerals in Red were the specs. for Canadian railway watches. Why produce a dial with black inner numerals? There is a further variant with no inners. I bought one with a NOS gold plated case, plexi and crown.
I think there are quite a few variants with black inner numerals: https://universalgenevepolerouter.com/galleries/865100-565100-railrouter/ Ive seen a few with the dial you posted, im guessing they are later serial versions when UG was changing over to their new logo...?