Laco Memmingen Erbstuck 42mm Handwinding WatchProduct. Nr. 861935 Inspired by the original 55 mm sized observation watches from the 1940s, this collection's models look as if they have been worn over several generations. The hand made "Erbstck" watch is one of a kind. Traces of ageing give these timepieces a historic charm that usually can only be found in vintage models. Laco has developed a unique method to achieve this special look, creating a natural patina on the watches. Scrapes, scratches,