SMALL DASHBOARD TYPE 8 DAY CLOCK MAYBE PLANE WW2?

A small dashboard type 8 day clock it maybe a ww2 airplane clock winds fully working. The dial rim dia is 56mm it is missing its minute hand and the glass is loose.The movement seems to have a platform balance looking in the a and r slot the hand adjuster is working.The dial has slight marks and looks very much like a military one.The dial has 8 day on it and the following nos 6948/42 mk11c and to the bottom ref no6a/1105.The case is stamped no 32870/2and has a crown type logo with am underneath it.Someone may know what it is from and it will be sent 1st class on payment.