Glashutte Original Senator Sixties Chronograph 39-34-02-22-04, Reference: 04, Stainless Steel on a Strap with a Stainless Steel Tang Buckle, Automatic Movement(Caliber 39-31), Domed Sapphire Crystal with Domed Transparent Case Back, Size: 42mm, Thickness 12.4mm, Water Resistant to 30 Meters, Like New with Original Box and Papers.