Okay, just some rough research here, but might be something to follow up on. You said he was a WW2 vet, but do you know from where, and what branch?
I find refrence to RAF <Royal Air Force> squadrons with codes of EA, N8, and RT.
http://en.wikipedia.org/wiki/List_of_RAF_Squadron_Codes
According to these codes N8 refered to Flight Station Waterbreach
http://en.wikipedia.org/wiki/RAF_Waterbeach
And one of them lead to a discussion about the highest medal that was recieved which was a cross, but more detailed. Here is a link to the cross.
http://en.wikipedia.org/wiki/Victoria_Cross
RT could refer to one of three Squadron 112, which were P-40's the Shark mouths. Squadron 114 which were light bombers. and Squadron 147 which were transport.
EA may refer to the code for Central Fighters Establishment which was a unit of RAF that tested new planes, equipment, and trained pilots. It also leads to RAF squadron 325 which I can't find anything on. Or Squadron no 49.
Squadron 49 is famous for being the only ones to recieve the Victoria Cross listed above, and Operation Grapple which dropped an Hydrogen bomb on Easter Island.
However all of these units had a crest I would expect to be on the braclet too, so all of this may have nothing to do with that braclet at all. But the fact that all three of those sets of letters lead to RAF squadrons that operated in that WW2 era seems like a good chance. You wouldn't have a name, or any other knowledge of the owner of the estate you bought it at would you?