Tavanne's Watch/Cyma for Kramer & Co. A Swiss .935 silver open face chronometer pocket watch. Date: Circa 1910. Movement:  Signed 'Tavanne's Watch', Cyma cal.787. Dial: Dual signed, silvered, outer minute track, black Arabic numerals, subsidiary seconds dial, blued hands. Case: Signed, plain finish, screw down bezel, front loading, numbered '7075318'. Size: 48mm. Accompaniments: English hallmarked silver fancy link watch chain.