On or off the field, this classic looking digital can keep your game on track. With a referee timer, 9 preset countdown and interval timer capability, there's no reason not to join in the game. A long-life 10-Year Battery and 100-Meter Water Resistance and more help round out this great addition to the Casio timepiece lineup. Black resin digital watch with gold accents and neutral dial. LED backlight with Afterglow, Multi-time (4 different cities), World Time, 29 times zones (48 cities), city code display, daylight saving on/off, Daily Alarm, Hourly Time Signal; Referee Timers 9 preset start timers: 10, 12, 15, 20, 25, 30, 35, 40, 45 minutes; Measuring unit: 1 second Timer modes: Elapsed time, auto repeat *Measurement of elapsed time for up to 60 minutes after the countdown reaches zero; 9 interval timers Measuring unit: 1 second Input range: 59'55" (5-second increments and 1-minute increments) Auto-repeat function; Stopwatch: Add time timer for injury timeouts, etc. Measuring capacities: Upper display: 59'59", Lower display: 99'59" Measuring units: 1 second (upper and lower display) Measuring modes: Elapsed time, event timer; Full auto-calendar (pre-programmed until the year 2099) 12/24 Hour Formats; Button operation tone on/off; Accuracy: +/- 30 seconds per month; Battery: CR2025 Approx. battery life: 10 years.