Ca. Ø56.5mm, ca. 152g, silver case, No.2607772, dome marked Chronomete Zenith, chronometer calibre quality '20 ½ Superior', lever escapement, patented fine adjusting device, signed enamel dial in very good condition, luminous numerals, luminous hands, wooden test case/transport case, green felt inside, in excellent condition, in working order and extremely rare. Deck chronometers by Zenith are rarities, especially in such fantastic condition. This wonderful precision watch is illustrated and described in Manfred Rössler, 'Zenith - Präzisionsuhren seit 1865', Ulm 2008, p. 94.