Vintage 1960's Jules Jurgensen Gigandet Valjoux 72 Chronograph World Timer Watch

Gold Plated / Brass with Stainless Steel Case Back. Case by Charles Gigandet (Wakmann is linked to them). Lug Less Classy Cushion case. Manual-winding Famous Valjoux 72. Chronographs have usually have a separate buttons to stop, start, and reset (unless it is an monopusher) the stopwatch complication, with the start button typically at the two and four o’clock position.

eBay