100% Authentic. Gran Turismo XL w/ Power Reserve indicator. Approximate power reserve of 46 hours. Swiss made, automatic movement. Water resistant up to 100m. Scratch resistant sapphire crystal. Screw-down crown. Black, tire style rubber strap w/ deployment buckle. Case diameter is 44mm, 14.2mm thick. Excellent condition with box and papers. Also known as model: 1684573001 or 16/8457. MSRP $6,250.