This is one of the few Longines 13ZN's made with a waterproof case from 1941. It's acually one of the rarer models with a steel high pressure stepcase measuring 34mm ex original crown. It's in lovely all original unpolished condition. The lovely original silver dial has aged only slightly around the edge and boasts lovely blue hands. Movement is of course the famous 13ZN flyback which was serviced a while back. It comes with a Longines Extract confirming delivery to the USA. It also comes with a very rare and beautiful Longines star box. Attached is a period strap. For sure the most affordable waterpoof 13ZN!