Ulysse Nardin Chronograph 18ct gold

rare little Ulysse Nardin Chronograph
Le Locle, Suisse
Case: 18ct-yellow-gold
silver-plated dial
gold-plated, striped Movement 
Valjoux Cal. 69, 10 ½-lines
Diameter of case: approx. 28,5mm
brown-Kroko-leather-strap, 15mm