A. Lange & Sohne 1815 up down an 18ct gold wristwatch with up and down Indication circa 2005. Dial: silvered, subsidiary dials at 4 and 8 for constant seconds and up/down register. Calibre: cal. L942.1 manual winding, 27 jewels. Movement number: 4984. Case: brushed and polished circular, display back secured by six screws. Case number: 116255, Closure: A. Lange & Sohne black leather strap and 18ct gold buckle. Dimensions: 36 mm. Signed: case, dial and movement. Accessories: none.