This oversized Girard-Perregaux Antimagnetic has a great look with sub seconds and nice original dial with honeycomb textured outer track. The watch dates to 1950’s and was imported and contract cased in a Helvetia chrome, steel back case in Argentina at that time. Girard-Perregaux opened a dealership in Buenos Aires in 1865 and many movements were cased in domestically produced cases such as this over the years. The manual wind cal 03 E 879 movement has been inspected by our watchmaker and is in excellent working condition.. Photos are not actual size of watch, the case measures 37 mm across (not including crown) x 43 mm lug to lug and is fit with a new leather bracelet.