Puzzle for you, it's not a Wiltshire (pretty confident the 51 "Wilkshire" posted is a spelling mistake as there's no such place and I can see in the comments someone else has come to the same conclusion). It does have a moustache and is a L1. Everything matches up although I think the dial is refinished as the minutes track has hour markers.
Case is slightly different from the listed Wilkshire: https://mybulova.com/watches/1951-wilkshire-6673?page=1
The ball is missing on the lugs.
Perhaps Wilkshire and Wilshire are different models, but maybe not.
I agree the dial has been re-done. The minute marks don't quite line up with the hour gold hashmarks.
Question: are there rough marks on the insides of the lugs indicating the ball decorations were lost? I believe the Wilkshire had only one attachment point for the balls (on the mustache and not to bezel). The plating wear spots on lugs almost suggest mechanical buffing as opposed to wrist wear.
In reply to I agree the dial has been re… by neetstuf-4-u
No noticeable roughness but there is a brassy spot on both moustaches where you would expect the balls to be attached. More obvious on one than the other so perhaps one came away and one was removed to balance up. I've taken a pic but having no url I can't upload it here. Could do via my laptop later if you want?
Certainly lost balls is the most logical explanation
In reply to Hey Luke - glad to see you… by Geoff Baker
Agreed with the name change in Db. When discussing "missing case details" I controlled myself from making the obvious jokes..........drat!
Sounds and looks to me like one was lost in some sort of mechanical buffing accident and the other surgically removed for aesthetic balance (yikes!). There, I said it :o)
1951 WILSHIRE noting "case modification"
Comments on this one as well as ads shown published a few years apart seem to indicate WILSHIRE is the name, with WILKSHIRE a potential ad text mistake.
On the keyboard, "k" and "L" are next to each other - fat fingered ad text typist