Timex Indiglo? back lighting is already about the best, but the Timex Ironman Triathlon Midsize 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: 1.25" Color INDIGLO? night-light. FLIX System: hands free INDIGLO? night-light. All-day-white reflector display. 30-lap memory recall. Top pusher for easy lap/split. 99-lap counter. Forward/backward setting. Built-in setting reminders. Customizable mode set: Occasion mode: 15 preset occasions. 3 alarms: daily/weekday/weekend/weekly. 3 time zones. 24-hour countdown timer with: countdown/stop (CS) countdown/repeat (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.