This watch has a built-in solar battery that eliminates the need to replace batteries, and atomic timekeeping prevents the need to reset the clock. It features 10 pre-set timers, a 10-year battery, world time, interval timers (9 sets), LEDs, and alarms. It is water-resistant up to 100 meters. The price drops from $29.95 to $15.93. Shipping is free for prime members or on orders over $25.