This 18 mm wide Hirsch watch strap is made of the brown alligator leather with Italian calf skin. This beautiful watch band tapers to 16 mm on the buckle end. It has heavy padding and measures 4 mm thick. Length dimensions below do not include the buckle. Add the length of your watch to ensure that this strap would fit your wrist. Image for illustration purposes. This strap comes with steel color only and it does not come with spring bars.