Adjustable black 18mm silicone strap fits up to 8-inch wrist circumference 100-hour chronograph with 30-lap memory; 24-hour countdown timer; 3 daily, weekday or weekend alarms 24-hour military time mode; 2 time zones; day, date and month calendar Black 42mm resin case with lime accents; acrylic lens; gray digital display; Indiglo light-up watch dial Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving