Brand: Audemars Piguet Model: Royal Oak Offshore Year of production: 2011 Reference: 15703ST Diameter: 42mm Case material: Steel Strap material: Rubber Accessories: Audemars Piguet box and warranty Worldwide insured shipping. Upon purchase of each timepiece, a card is issued that guarantees its correct functioning for 12 months and certifies the authenticity of each component.