GRAHAM REF. 2TSAR TOURBILLOGRAPH LIMITED EDITION PINK GOLD Graham, London, Tourbillograph, Swiss, No. 18 / 25, Ref. 2TSAR. Made in a limited edition of 25 pieces in 2015. Fine and unusual, large, self-winding, water-resistant, 18K pink gold wristwatch with skeletonized one-minute tourbillon regulator, round button chronograph, registers, tachometer and an 18K pink gold and titanium Graham deployant clasp. Accompanied by the Certificate of Origin, instructions and hangtag. Three-body, polished and brushed, rounded band, concave carbon fiber and pink gold bezel with tachometer scale to 400 UPH, straight and curved lugs, transparent case back with 6 screws, sapphire crystals. Carbon fiber with applied radial pink gold Arabic numerals, outer 1/5th seconds track with 5-second Arabic markers, at 11 aperture for the visible tourbillion regulator, subsidiary guilloche 12-hour and 30-minute register dials. Luminous pink gold epÈe hands. Cal. G 1780, rhodium-plated, oeil-de-perdrix decoration, 34 jewels, one-minute tourbillon with second hand, monometallic balance, shock absorber, self-compensating flat balance spring.