Case material: Yellow gold; Charge: Manual; Conditions: New Year : 1960; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: TPP3521M Pre owned, Patek Philippe Square, 25mm 18K yellow gold case, black dial, 18K yellow gold case back, black leather strap with plated gold pin buckle, scratch resistant sapphire crystal, 20m water resistant. This watch carries a TM 12 month mechanical warranty, alongside any remaining manufacturer's warranty it may also have.