Model: CalatravaReference: 3602Date: Circa 2000Movement: 36-jewel Cal.28-255 automatic, adjusted to heat, cold, isochronism and 5 positions, No.1300650Dial: Sunburst blue, applied silvered baton hour markers, date aperture at 3, silvered baton handsCase: Brushed and polished round, hobnail engraved bezel, No.525797Strap/Bracelet: Black Patek Philippe alligator leatherBuckle/Clasp: White gold buckle Signed: Case, dial & movementSize: 33mm Accompaniments: Patek Philippe box, outer card