PATEK PHILIPPE hochfeine & sehr seltene, aufwendig skelettierte Taschenuhr in GG 750/000 Referenz 899, Schweiz um 1981, flaches, beidseitig verglastes Gehäuse, transluzid blau emaillierter Boden & Glasrand aufgedr., grav. Gehäuserand, Krone m. Saphircabochon, Kathedralzeiger, 18 St., aufw.von Hand graviertes Brückenankerwerk, Kal. 17-170, Gluc.-Schr.-Unruh, Breguet-Sp., Schwanenhalsfeinreg., Federhaus unter Calatrava-Kreuz, D. ca. 47 mm, PPC-Box anbei, EZ 1-2 PATEK PHILIPPE very fine & extremely rare, lavish skeletonized 18k yellow gold pocket watch reference 899, Switzerland around 1981, thin, on both sides glazed case, translucent blue enamelled snap on case back and bezel, engraved case band, winding crown with sapphire cabochon, cathedrale hands, 18 jewels, lavish by hand engraved lever-movement with glucydur-screw-balance, calibre 17-170, Breguet balance-spring, swan´s neck regulateur, barrel under Calatrava-Cross, diameter approx. 47 mm, PPC-box enclosed, condition 1-2