This is the rarest variant of Longines 30CH ref 7413... the Waterproof with Pulsations dial! It's increasingly rare to find these in all original condition... This example is untouched with unpolished case and original crystal. The crystal is important as it has lume dots on the inside marking the hours. The original silver dial is in super condition with lovely blue Pulsations scale and blue chrono hand. The waterproof case measures 38mm excl. original crown. Movement is Longines famous Cal 30CH with flyback, super clean and wotking perfectly. Attached is a period blue Tropic band with Longines buckle. It furthermore comes with it's original box and extract (sold in Argentina in 1971). 

Reserved.