A. LANGE & SÖHNE very fine and extremely rare 18k pink gold gents wristwatch model 1815 Kalenderwoche, manual winding, reference 245.032, sold out, made in a limited special edition of 50 pieces, original leather strap with original 18k pink gold buckle, on both sides sapphire glazed, case back 6-times screwed, display of hours, minutes, constant second, day & week indication, quick set of day & week indication by pusher at 2 & 4, fine finished movement, calibre L045.1, 29 jewels, 4 screwed chatons, blued screws, fausses cotes decoration, by hand engraved balance cock, diameter approx. 38,5 mm, original box & papers, sold in December 2006, condition 1, collectable