I bought this on eBay after a while of searching for this particular model just because I like the case shape, and you can never go wrong with a cross hairs dial. It is a Princeton "B" like the one seen here. When I got it the whole watch was apart in a tin. Luckily all of the parts were there and intact I was able to restore it to almost like new condition. I suspect it spent a good portion of its life apart in the tin I had got it in because the white gold plate case is in good shape and has only minor wear on the caseback.
Case Serial No.