A. Lange & Sohne Lange 1 a fine 18ct gold wristwatch with date and power reserve circa 2000. Dial: silvered, eccentric hour dial, subsidiary dial at 4 for constant seconds, large double aperture for date at 1, up/down power reserve register at 3. Calibre: cal. L901.0 manual winding, 53 jewels. Movement number: 25917. Case: brushed and polished circular, button in the band at 10 for calendar setting, display back secured by six screws. Case number: 135508, Closure: a. Lange & Sohne brown leather strap and 18ct gold buckle. Dimensions: 38 mm. Signed: case, dial and movement. Accessories: none.