can anybody help with info on this watch, I've had it for thirty years and know it was made n 1939, serial number 9900600, would like to know more about the engraving on the back,(H.S. 8 with ministry arrow)

 

Lovely example of a Fleet Air Arm pilots watch issued to RN.
Id say 1943.

 

http://www.mwrforum.net/forums/showthread.php?56201-Fleet-Air-Arm-Omega-HS8-research-information

 

http://www.mwrforum.net/forums/showthread.php?81112-Case-Back-Marking-Help
http://www.mwrforum.net/forums/showthread.php?76403-WW2-Omega-HS8-wrist-watch
http://www.mwrforum.net/forums/showthread.php?81720-Omega-HS8-in-Southern-Ontario