細節
PATEK PHILIPPE, AN 18ct. GOLD QUARTZ CALENDAR WRISTWATCH
case no.2834765, movement no.1581963, Ref:3931, 1986.
oval white dial with Roman numerals, date aperture, quartz movement with 7-jewels and one adjustment, oval case with machined bezel, maker's strap with gold buckle, dial, movement and case signed, 34mm x 28mm.