A GENTLEMAN'S 18K SOLID WHITE GOLD PATEK PHILIPPE CALATRAVA WRISTWATCH CIRCA 1995, REF. 3520 D: White porcelain dial with applied Roman numerals & outer minute track. M: Manual wind movement signed Patek Philippe & numbered. C: Circular case with hobnail-patterned bezel, signed Patek Philippe, numbered & hallmarked, original crown, case diameter measures approx. 32mm. S: Original Patek Philippe leather strap & 18k solid white gold pin buckle.