Dewitt Academia Tourbillon Mysterieux in 18K White Gold In-house manual winding grand complication movement. This is the very top of Dewitt's line. Model: AC.8001.48.M950 Limited Edition of 50. This is numebr 45/50. If you are reading this, then you are a connoisseur. This piece is the stuff of dreams. This is the best of Dewitt's masterpiece. Every edge on this piece is painstakingly hand-finished to perfection. Every angle is rounded with anglage-style finishing. Every screw is mirror polished. This is a true masterpiece by a world-class watchmaker! Size: 43mm with out crown (44.5mm with crown). Versatile size for both formal and casual occasions. Wears extremely comfortably on the wrist. Dial: Multi-lawyered blue dial with tourbillon cage with the extremely time-consuming "black-polishing" pattern. Movement: In-house grand complication manual-winding tourbillon movement The sapphire crystal display back shows a strong and unusual movement architecture carefully designed just for this piece. This masterpiece is mesmerizing to look at from both the front and the back. Comes with original Dewitt large 18K WG deployant buckle. Very solid gold piece, weighs 171 grams. Comes with original long Dewitt blue crocodile strap in brand new condition, and can fit wrist up to 9.5 inches. Comes with original box, brush and cleaning cloth (Sorry but the papers are misplaced)DeWitt