Guess Tonneau Men's Watch Digital Alarm Chronograph GW0340G3 Plastic case, grey, mat Silicone strap, green, pin buckle Quartz movement, battery operated Weekday display, Date display Chronograph function, Stop watch Timer Alarm function Dualtime / Second time zone 50 meters Water Resistant Dial color black / grey Case width around 45 mm Case height around 15 mmComes with box and information card. For environmental reasons, operating instructions and further information are only available on the manufacturers website!