Patek Philippe. An aluminium electronic marine chronometer with sweep centre seconds

Patek Philippe. An aluminium electronic marine chronometer with sweep centre seconds
Signed Patek Philippe, Genève, Naviquartz II, ref. 1202, movement no. 1'801'022, manufactured in 1974
Quartz movement with jumping seconds hand, black dial, inner white Arabic hour indication, Arabic seconds indication to the outer raised chapter ring, sweep centre seconds, in black painted cast metal case with chromium plated bezel, hinged stand to the reverse, case, dial and movement signed