Golden Circle, Reference 3604 | A yellow gold wristwatch with date | Circa 1973 Patek Philippe Golden Circle, Reference 3604 A yellow gold wristwatch with date Circa 1973 Dial: blue Calibre: cal. 28-255 C automatic winding, 36 jewels Movement number: 1'301'247 Case: 18k yellow gold, snap-on case back Case number: 2'735'932 Closure: 18k yellow gold Patek Philippe buckle Size: 36mm width x 36 mm length Signed: case, dial and movement Box: no Papers: no Accessories: Patek Philippe Extract from the Archives