Laurent Ferrier. An extremely fine and rare 18K white gold tourbillon wristwatch with double balance springs, black onyx dial, certificate and box Signed Laurent Ferrier, Genève, Galet Classic Tourbillon Double Spiral model, ref. LCF003-G, no. 002 G, movement no. 52, circa 2017 Movement: cal. FBN 916.01, manual, 23 jewels, one-minute tourbillon with lever escapement and double balance springs, signed Dial: black onyx, signed Case: glazed display snap on back, 41 mm. diam., signed With: Laurent Ferrier 18K white gold buckle, Certificate of Origin, wooden loupe, polishing cloth, original fitted wooden presentation box and outer packaging