PATEK PHILIPPE, Geneva Naviquartz or Marine chronometer, circa 1980-90. Round gilt dial, signed, hour markers with Roman numerals in black for the hours and dashes for the minutes. Rectangular case with brushed, gilded brass front, marked with the model name in black, ribbed bezel. Button and gauge to indicate battery power reserve. Numbered 1.802.422. Caseback numbered 1216. Quartz electronic mechanism. Mahogany window case, partially reddened, with brass hinges, compasses, corners and brackets. Cartouche on the lid and plate on the reverse in gilded brass (mute). On the reverse of the base, small folding easel in brushed, gilded brass. 7.7 x 12.5 x 16 cm. Some wear to the gilding; a few scratches and minor dents to the case.