18k yellow gold case, solid snap on case back, concealed in a United States of America twenty dollar "1908" coin. The coin cover is hinged and activated through the case band at 2 o?clockManual winding nickel lever movement, mono-metallic balance 18 jewelsGilt dial with painted black Arabic indexes & baton handsCase, dial, and movement signedDiameter 35 mmWe do our best to ensure that all our watches are exactly as described. In the event that the watch operates outside of the listed specifications, the Auction house will only accept full returns.Due to the nature of vintage timepieces we cannot guarantee water resistance. Pre-Owned timepieces may require servicing to perform to specification unless it has been specified. We provide a 24hr/Accuracy reading for reference purposes only.