JACOB & CO. AN EXCEPTIONAL AND UNIQUE OVERSIZED BLACK COATED 18K WHITE GOLD VERTICAL TOURBILLON WRISTWATCH WITH 31 DAYS POWER RESERVE INDICATION

JACOB & CO. AN EXCEPTIONAL AND UNIQUE OVERSIZED BLACK COATED 18K WHITE GOLD VERTICAL TOURBILLON WRISTWATCH WITH 31 DAYS POWER RESERVE INDICATION
SIGNED JACOB & CO., QUENTTIN, PIECE UNIQUE, NO. 1/1, CIRCA 2008
Cal. 5 nickel-finished lever movement, 40 jewels, vertical one minute tourbillon carriage, seven gold barrels for 31 days power reserve, verticle discs indicating minutes, hours and 31 days power reserve, heavy and oversized curved rectangular-shaped case, carbon fiber inserts to the band, two winders in the band for 31 days power reserve and for time setting, circular glazed display in the band to view the vertically set one minute tourbillon carriage, glazed display back secured by four screws to view the 7 gold barrels and vertical disks, half black coated 18K white gold Jacob & Co. double deployant clasp, case and movement signed
46 mm. wide