Maybe the minute hand might be wrong. Seeing the hour hand, the minute should more likely be in a "bréguet" style too.
Thank you, I see you are right - the "bréguet" style hour hand doesn't actually sit well with the minute hand - I wonder which may be wrong though (the hour or minute hand) - I did some searching, looking for an example of the same, but couldn't find anything - there were 'Mappin' equivalents, but not with the same coloured dial @ #12 etc.
I thought the best plan was to look for the most unique element - which is when I noticed the #7 - it has a very distinctive 'flourish' to mirror the #5 opposite, in fact if you look at the #7 upside down the 'flourish' at the bottom make is look almost like a '2' - this did return only a very small number of matches, sadly no 'Mappin' equivalent, but a RWC Unicorn, 1919 Omega Banana cal. 23.7S ref. AR727AL, 1918 Tissot and a 'no name' that is also rather handsome lookin did pop up!
Looking at the other numbers on the dial, I would say the 'Mappin', Tissot and Rolex are the same dial, the 'no name' and Omega seem to match each other but not these - that said, there is something about the RWC dial that doesn't sit well, it looks as though it's been cut to fit the case and is as a result rather inelegant versus the others.
None have the red coloured #12, and only the 'no name' has the "bréguet" style hour hand, with the minute hand most closely resembling the Omega ...............
Not sure where this leaves things, but it is interesting to find no match but some very close cousins!