The simply designed Casio G-Shock Classic analog-digital watch for men offers shock resistance that's great for your most vigorous sporting activities as well as anti-magnetic properties. The durable round black watch case measures 47mm wide (1.85 inches), and it's matched to a comfortable black resin sports strap. Timekeeping features include a 1/100-second stopwatch with a 24-hour capacity and elapsed time mode, dual time for tracking a second time zone, daily alarm, and 12/24-hour formats. Other features include an Auto Calendar (pre-programmed until the year 2039), ±15-second accuracy per month, Afterglow backlighting, and water resistance to 200 meters (660 feet)--which will stand up to the rigors of recreational scuba diving. Note: Though this watch is designed to withstand exposure to magnetic force, you should still keep it away from machinery and appliances that generate a strong magnetic field.