Very high quality Swiss gold repeater with chronograph Circa 1917

Gold lever chronometer pocket watch
–
A very fine and rare, large Swiss, minute repeating, keyless, 18K yellow gold lever chronometer pocket watch, circa 1917. With an oval button for chronograph and an instantaneous 30-minute register. Accompanied by the original Ulysse Nardin fitted wooden box, certificate, Bulletin de Marche and service invoice. A polished case, the front cover with a chased monogram CO, and a button for start/stop/return-to-zero of the chronograph at 12. Hinged gold cuvette with engraved presentation inscription.
–
White enamel dial with Breguet numerals, outer minute divisions and concentric fifths of a second chronograph division, Arabic five-second numerals, inner red 24-hour numerals, subsidiary dials for the seconds and 30-minute register. Black steel spade hands. A rhodium-plated movement, Geneva striping decoration, 36 jewels, wolf’s tooth winding, straight-line lever escapement, cut bimetallic compensation balance with gold temperature adjustment screws, blued steel Breguet balance spring with a terminal curve, index regulator, visible chronograph mechanism, repeating on gongs activated by a slide on the band. Dial, case and cuvette signed.
–
Diameter: 55 mm
–
Signed: Ulysse Nardin  Locle & Genève
–
This watch is very high quality and in extremely good condition, it is sold with the original box and papers. This watch was chronometer tested by Ulysse Nardin in December 1917 and overhauled by the company for the owner, Monsieur Carl Ott of Neuchatel in November 1918.