I'm on the hunt for info regarding a Semikrosplit. The timer I have is an early Semikrograph (Mvt s/n 603) marked with E & M on the caseback and there seem to be many others about with this marking. I've had a good look around but can't find any reference to that mark. in WW1 there's a branch of the Royal Engineers who were referred to as E&M but the watch has no Pheon and the British army tended not to buy expensive watches like the Semikrograph so I think that's not the link. My guess is military judging from the number of Semikrographs marked E&M as that would likely be the only organisation buying in such high numbers. Any thoughts?