The Praeludium Automatic is a mechanical watch that shows you the date and the time in hours, minutes and seconds. The watch case measures 42.5mm in diameter and is made from stainless steel. The watch is water resistant up to three bar and domed sapphire crystal with a double anti-reflective coating provides a crystal-clear view of the characteristic two-tone dial.This specific Staudt Praeludium has a steel case with the so called 'Staudt Blue' dial and is fitted a brown alligator strap