Aircrew are issued with a watch PortVale, there are several places that sell them on, evil bay for one and another site I have somewhere that has the RAF pulsars for about £220 brand new, I could dig up a link for you if wanted. The ones posted here are privately purchased items, as most aircrew like lots of flashing lights and a bit of bling
This will tell you all sbout them..
Seiko RAF and RN Chronographs
Generally your average Airman or Soldier were not issued with watches as we were more savvy and a quick squint at the sun ( if it ever appeared) could calculate the time down to the nearest minute.
Here you go found the link
Military Watch Dept
Welcome to the forums BTW