Adjustable black 16 millimeter nylon fast wrap strap with hook and look closure fits up to 8-inch wrist circumference 100-hour chronograph with lap and split times; 24-hour countdown timer; month, day and date calendar 3 daily, weekday or weekend alarms with 5-minute backup; 24-hour military time mode; 2 time zones Black 33 millimeter resin case with acrylic lens; Gray digital display; Indiglo light-up watch dial Water-resistant to 100 meter (330 feet): In general, suitable for snorkeling, as well as swimming, but not diving Durable and comfortable fabric strap fits up to 7 1/2 inch wrist circumference