PATEK PHILIPPE CALATRAVA, REF.3919J, A YELLOW GOLD WRISTWATCH, CIRCA 1987PATEK PHILIPPE | CALATRAVA, REF.3919J, A YELLOW GOLD WRISTWATCH, CIRCA 1987Case No: 2'994'989Calibre: 215, manual winding, signedDial: White, signedCase: 33mm, 18k yellow gold, snap on case back, signedStrap: Maker's endangered species, 18k yellow gold buckle, signed百達翡麗，「Calatrava」3919J型號，黃金手動上弦腕錶，年份約1987。