Guess Leo Men's Watch Multifunctional GW0637G2 Stainless steel case, gold colored coating, mat Silicone strap, black, pin buckle Quartz movement, battery operated Weekday display, Date display, 24 hour display Water Resistant Dial color black, skeletonized Case width around 42 mm Case height around 10 mm Comes with box and information card. For environmental reasons, operating instructions and further information are only available on the manufacturers website!