Lucien Piccard Men's 40017A-01 San Marco Analog Display Automatic Self-Wind Black Watch Round watch with partially skeletonized black dial featuring open lugs, exhibition case back, fluted crown, and three subdials 44 mm stainless steel case with synthetic sapphire dial window Automatic self-wind movement with analog display Black calfskin band with deployant closure Water resistant to 30 m (99 ft): In general, withstands splashes or brief immersion in water, but not suitable for swimming