Zenith, “Chronograph”, case No. 773111, 18K yellow gold wristwatch with square button chronograph, registers, and tachometer. [..]
CASE: Three body, solid, polished, curved lugs, snap on case backDIAL: Silver with baton and Arabic numerals, outer minutes/seconds division, subsidiary dials for the seconds and 45 minutes, outermost blu tachometer scale. Gold Dauphine handsMOVEMENT: Cal.156, rhodium plated, straight line lever escapement, monometallic balance, Breguet balance springDial, case and movement in good conditionDial, case and movement signedDIAM: 38 mm THICKNESS: 10 mm