* Solid stainless steel 50mm casing and high quality genuine leather strap* Classic easy strap on with engraved buckle* Unique left concept crown* Continuous seconds single Chronograph display* Fully Automatic watch mechanism with sweeping second hand movement* Screw-in crown* Contrasting marker color for optimum night readability* Sapphire crystal clear Case Skeleton back with crystal clear front glass* All the appropriate U-Boat markings and wordings* Detailed logo, serial/model number engraved on the back * Weight and feel very close to the original *