The minimalist design of the ultra thin 6mm daniel wellington classic collection watch is ideal for all occasions the black leather strap is made of genuine italian leather and is a great contrast to the steel 40mm case all of the daniel wellington straps are interchangeable so you can feel like you have a different watch of every day of the weekstrap black leatherstrap width 20mmcase color steeldial color eggshell whitecase size diameter 40mmcase thickness 6mmmovement japanes