New watch from Fortis via Design You Trust. At least this forces you to do some math before reading out the time (and some roman numerals, compass degrees and number sequence). Check you can read all the hour hand movements!

0 degrees
1
7-5
90 degrees
2+2
5 < I got that one
36/6
4+3
2³
IX
?
Sq. root of 121

 Not in their collection, but hey.