Timex Indiglo back lighting is already about the best, but the Timex Ironman Triathlon Traditional 30 Lap Sports Watch with Color Indiglo makes It even better and more fun with color! No skimping on features, in this watch. You'll find all of the chrono, training and time keeping functions you must have in your sports watch. Face diameter: 1.5 Color INDIGLO night light. All day white reflector display. 30 lap memory recall. Top pusher for easy lapsplit. 99 lap counter. Forwardbackward setting. Built in setting reminders. Customizable mode set: Occasion mode: 15 preset occasions. 3 alarms: dailyweekdayweekend. 3 time zones. 24 hour countdown timer with: countdownstop CS countdownrepeat CR 100 hour chronograph with lap or split option either in large digits. 6 year battery life. Water resistant 100m. Battery life estimates are based on certain assumptions regarding usage: battery life may vary depending on actual usage.