Important Collectors’ Wristwatches, Pocket Watches, Clocks & Horological Tools LOT 312 "Tourbillon Squelette" Breguet, "Tourbillon Squelette", No. 640, Ref. 3355. Made in the 1990s. Very fine and rare, skeletonized and hand-engraved, platinum gentleman's wristwatch with visible one-minute tourbillon regulator and a platinum Breguet buckle. Accompanied by a fitted box and a certificate. C. Three-body, solid, polished, straight lugs, gold screwed bars, reeded band, transparent case back, sapphire crystals. D. Transparent with painted radial Roman numerals on an off-center ring dial at 12 for hours and minutes, at 6 the visible tourbillon cage under a hand-engraved steel bridge bearing a 3-spoke blued steel seconds hand for the seconds sector. Blued steel "Breguet" hands. M. Cal. 13''', skeletonized and hand-engraved, 21 jewels, lateral lever escapement with tourbillon regulator and polished steel cage with 3 equidistant arms, monometallic balance, self-compensating Breguet balance-spring. Dial, case and movement signed. Diam. 36 mm. Thickness 9 mm. Estimate: 70,000 USD - 90,000 USD Estimate: 55,000 EUR - 70,000 EUR Grading system C 3 D 1-01 M 1 Click here for written condition report See high definition image Important Collectors’ Wristwatches, Pocket Watches, Clocks & Horological Tools 14-06-2006