Having four sub-registers instead of three balances the dial and gives it real interest. Add in the different colour of the numerals and the overall strength of the look of the case - just a bit bulky, but still refined with those slightly elongated lugs - and I think you’ve got a winner.
In fact the only thing I don’t like here is the ‘F50’ on the dial - would have been better on the back if you ask me!
Best
E.