Swiss stainless steel chronograph lever pocket watch Circa 1923

Stainless steel watch with telemeter, tachometer and 30- minute recorder
–
A fine Swiss, stainless steel, a keyless pocket watch with chronograph, telemeter, tachometer and instantaneous 30- minute recorder, circa 1923. A polished case, inclined and stepped bezel, inset winding crown, chronograph button at 11 o’clock. Two-tone silvered dial with Breguet numerals, outer minutes and fifths of a second track with Arabic five minute second numerals, outer red Arabic telemeter scale, outer blue tachometer scale, subsidiary seconds and 30-minute register. Blued steel feuille hands. A frosted gilt movement, 17 jewels, straight-line lever escapement, monometallic balance, self-compensating Breguet balance spring, index regulator. chronograph with visible work. Dial and case signed.
–
Diameter: 42 mm
–
Signed: Ulysse Nardin  Le Locle