The ADANAC Digital Field watch has a black IP coated case with extreme shock and water resistant to 20 ATM. It also features a blue electro-luminescent backlight, dual time zone capability, 2 daily alarms and features chronograph stopwatch mode which has 1/100 second resolution. This feature measures up to 100 hours and 100 lap memories with recall and total time. The Marathon GPD also has a timer feature with 100 hour capacity and 6 quick set values of 1, 3, 5, 10, 15 & 45 minutes.