18S Keystone watch case w/ Train in good condition. The engraving has some pitting from years of service but I think that gives it character. I would use this case for LEVER SET MOVEMENTS ONLY. The crown can also be pulled up to accommodate pendant set movements. Case: Open face, Lever or pendant set. Outside D: 59 mm. Please use the photos as a big part of the description and please contact me with any questions.