FREDERIQUE CONSTANT REF. FC 310 YELLOW GOLD DIAMOND & RUBY “ROYAL HEARTBEAT” Frederique Constant, Genève, “Royal Heartbeat,” No. 15/100, Ref. FC-310 DR37. Made in a limited edition of 100 pieces circa 1998. Fine, self-winding, water-resistant, 18K yellow gold wristwatch with diamond-set bezel and pavé-diamond dial with ruby hour markers with a total of 324 diamonds, a visible escapement and an 18K yellow gold buckle. Accompanied by a fitted wooden Frederique Constant box. Three-body, stepped diamond-set bezel, curved lugs, transparent case back with six screws, sapphire crystals. Pavé diamond with ruby hour markers on 18K gold square and baton indexes, large aperture to view the escapement. Yellow gold feuille hands. Cal. 217, copper color, fausses côtes decoration, 25 jewels, straight-line lever escapement, monometallic balance, self-compensating fl at balance spring, shock absorber. Dial, case and movement signed. Diam. 36 mm. Thickness 10 mm.