Quote Originally Posted by jethrobodine View Post
Bought this on the bay. It's an as1716 with a two piece stem. Dial is approximately 26.5 mm. Runs well and looks very clean. Any ideas as to what case it came out of. Ranff dates it to 1964.Click image for larger version. 

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Wow, that is a real conundrum. If the split stem and the movement date (1964) are correct it predates the Manhattan but comes from a watch with a similarly encased movement. The dial has the markers in a round placement, however it could still have been a square or rectangular case, held together with 4 screws or a snap on case back. I note there is no Rado brand on the rotor, however that may not be unusual for this movement or the rotor may have been replaced at some point. Very interesting piece, I'm sure it'll cause lots of discussion. Hope you find an answer.