Case material is silver colored metal that is not chrome and has resisted the the elements much better than the normal chrome plated ovr base metal cases of typical Type A-11 cases. The case measures 30mm or 1 1/8 inch diameter w/o crown, 36.0mm lug-lug, 16.0mm between lugs. The stainless steel case back is stamped:
TYPE A-11
SPEC.NO. 94-27834
SER.NO. AF43-34290
PART NO.10AKCSH
ORD.NO. W535AC-33934
BULOVA WATCH CO.
21/11/2011 Edited case material to reflect new support data indicating numerous instances of silver cased military issued Type A-11 WWII era hack watches.
This Type A-11 watch meets all of the requirements of military specification no. 94-27834 dated 1941, Watch Navigation, Type A-11 (Hack).
There are no military specified plating requirements in mil-spec 94-27834. Pate finish was left to the manufacturer. Big bad Bulova move. I don't wonder why so many Bulova chrome plated WWII era Type A-11 & ORD watch movements are re-cased. The auction market is flooded with re-cased watches & sold as Pilot watches.





Im gonna go out on a little limb here and say that whatever size the case is, the BULOVA marked caseback fits, and I asssume it would not fit the larger dia case we see more often. So My opinion is that it is a proper Bulova watch. And a very good looking one too !!
In reply to Im gonna go out on a little by shooter144
Jump back off the limb Shooter. I just measured two A-11, one Blank and two A17A case backs, and all measure 24.6mm flat spot to opposite flat spot. All are stainless steel. Looks like they are interchangable. Think about how easy it is to make up a watch. So easy even I could build one. I want one of those caseback wrenches Shawn has.
The A11 30mm case side-by-sidewatch comparison is the first I have actually seen. But I have read five different instances of a silver colored cased Bulova A11 watches.
In reply to Jump back off the limb by Wayne Hanley
In my research endeavor I found this A11 that had been discussed on another network. It appears to be what the seller of my A11 claimed it to be, a silver cased A11.
I edited & omitted the book report length description & present information relative to discussion of the existance of silver cased A11 WWII era watches: Presented is an interesting and unique find. A WWII vintage Bulova military watch, cased in what honestly looks like a silver case, with a black original dial & serviced hack movement & stainless steel back case. The gentleman I bought the watch from stated his belief that the case is silver. A silversmith friend thinks it's silver, it looks & feels like silver, but since it is unmarked, I'm forced to offer it as a white metal case that is definetly not chrome.
The above silver colored Type A11 hack watch is one of the finest military watches I have seen, except for my two star silver colored Type A11-1943 hack watch that was issued to US Army Air Corps flight crews.
On this Thanksgiving Day, I will remember you guys and thank you for what you did for us.
Happy Bird Day Everyone! Goble Goble!
Silver A-11's are real and members on Broad-arrow.net agree, as can be seen via this link.http://www.mwrforum.net/forums/showthread.php?p=178112