£ 525 $ 665 | €624 A 1961 Longines Mystery Dial wristwatch. A stainless steel case with shaped lugs. A silvered dial with central rotating disc, acting as the hour hand and a dauphine hand for the minutes. Applied gilt hour batons, doubled up at the quarters. A17 jewel manual wind caliber 19.4 Longines mechanism. Serial numbers date this ...