Whilst I realise this is the Omega Forum (best) I felt that some may appreciate the fact that the above has just supplied me with a great vintage style strap for my West End Trench watch. 12mm lugs on Italian leather & under £25 delivered. The guard fits well to..Hope it’s not considered “Over the Top”! I don’t have any connection with vintagewatchstraps.com but can recommend them highly.
I also have no connection with vintagewatchstraps - but I can strongly recommend his website: most informative: http://www.vintagewatchstraps.com/index.php All sorts of useful/valuable information.
It is in fact a shrapnel guard. Are you gents seriously asking the question? Helloooo.... this is a WWI watch.