In trying to determine when the Model No. "A" case stopped using shoulders I'm finding conflicting information. There are catalog pages from as late as 1951 showing the shouldered Model No. A case available. The problem is while searching for watches in the model A case many seem to from the late 1940's and they're in non-shouldered cases.

Perhaps the catalogs didn't revise the illustrations? Is there a consensus as to when the shouldered cases were discontinued? Is the Model No. 11 case losing it's shoulders consistent with the Model No. A?

Any information appreciated,

RR

Hamilton Watch Co. 1951 catalog page 161

Going by the 992B boxed set info I have, the transition to non-shouldered cases on the Case A and 11 happened about 1947-1949.

But the 950B was a slower selling model, so they may not have run out of the old-style cases until later, so that may be correct. Remember, they never threw anything away!

My 1952, 950b does not have a shouldered case.

Thanks Guys,
I've been gathering whatever box label pictures I can but most are for earlier 992B watches. Someday it would be nice to get a database going for the Keystone Hamilton factory advertised RR cases.
RR

Richard, you will need pictures of the watch in a boxed set to know whether the case has pendant shoulders or not. There's no annotation on the box label one way or another.

You can see examples of this in my brown box database in the 992B research forum:

https://ihc185.infopop.cc/eve/f...4108073/m/7601094112

Ed,
I forgot about the brown boxes and what a great resource you put together in the 992B examples in Brown Boxes database. I put the link in my Hamilton boxes folder for future reference and to remind me when I go to look at factory boxes.
Thanks again,
RR

Just to toss this in, my 1953 950B does have shoulders.

Regards! Mark

I have a 1950 992B Model 11 Case that has shoulders. Looks original in condition to the rest of the watch.