A. LANGE & SÖHNE extremely fine & rare platinum Lange 1-Tourbillon 'Centennial Tourbillon', reference 704.025, made in a limited special edition of 150 pieces limited special edition based on Lange 1 developed minutes tourbillon, 3-piece construction case including original leather strap with original platinum buckle, case back 6-times screwed, solid silver dial with off center time display, constant second, visible Tourbillon cage under polished steel bridge, on the back 2 from Hand engraved bridges, big date at 2, retrograde 72 hour power reserve indicator at 3, fine rhodium plated movement, calibre L961.1, 49 rubies & 2 diamonds, 7 visible screwed down gold chatons, double barrel, monometallic screw-balance, Breguet-balance, adjusted in 5 positions, diameter approx. 38,5 mm, original box & papers, sold in June 2001, additional certificate of origin made by A. Lange & Söhne from August 2019 enclosed, condition 2, property of a collector