Swiss electronic centre seconds chronometer Circa 1975

Mahogany Naviquartz by Patek Philippe
–
A fine Swiss electronic centre seconds chronometer, made in the 1970s. Naviquartz. Electronic movement, battery operated quartz standardization. Black enamel dial with Arabic numerals, outer minutes divisions, outer seconds ring with baton divisions and Arabic five-second numerals, original white painted baton hands, brushed steel dial plate. Cast and painted metal case with chromium-plated bezel, battery compartments with screwed-down covers, folding stand. Dial, case and movement signed. Accompanied by the original mahogany fitted box.
–
Dimensions: 23 x 17 cm
–
Signed: Patek Philippe Genève