Patek Philippe. A gilt electronic marine chronometer with sweep centre seconds and original mahogany box

Patek Philippe. A gilt electronic marine chronometer with sweep centre seconds and original mahogany box
Signed Patek Philippe, Genève, Naviquartz II model, ref. E1200, movement no. 720'473, manufactured in 1972
Cal. 33 with quartz standardization, white dial, radial black Roman numerals, sweep centre seconds, in black painted cast metal case with gilt bezel, hinged stand to the reverse, case, dial and movement signed
140 mm. wide & 200 mm. overall length