Big iron-pocket watch with complete calendar and moon phase, Switzerland around 1910, gun metal case corroded, correction in bezel inserted, enamel dial hairlines with Roman numerals, sub-dials for month, day, date, moon phase & second, gilded Louis-XV hands, nickel plated movement with decoration polishing under glass, 15 jewels, big compensation- balance with Breguet-hairspring, diameter approx. 66 mm, condition 2-3