Quenttin Red Magnesium Jacob & Co

Quenttin Red Magnesium Jacob & Co. , Quenttin, Red Magnesium, No.10/18. Made in a limited edition of 18 pieces in 2007. Very fine and rare oversized rectangular tourbillon magnesium wristwatch with a double deployant clasp. Accompanied by the certificate of origin and instruction booklet and a massive motorized and lighted display case with automatic winding mechanism and transportation bag. Rectangular, magnesium aluminium, three-body, polished and brushed, flexible lugs, sides inlayed with carbon fiber, lever on the left side of the case that can be set to allow for the winding, on the right side of the case aperture for the tourbillon escapement and lever for winding, sapphire crystals. Three black vertical disks, luminous Arabic numerals for hour, minute and power reserve indication. Cal. 5, 40 jewels, 31-day power reserve supplied by 7 barrels, vertical lever escapement with one-minute tourbillon regulator. Dial, case and movement signed. Dim. 53 mm x 45 mm. Thickness 20 mm. Notes Developed by the famed movement maker BNB Concept in Crans, Switzerland, the goal of Jacob was clear: to offer the first 31 day Tourbillon wristwatch. Seven barrels juxtaposed vertically and mounted coaxially provide the source of the extended power reserve while the tourbillon carriage was constructed using bearings instead of rollers.