Revel in the joy of being outdoors under the starry skies with a PRO TREK as committed to the environment as you are. Featuring the first phosphorescent LCD in a Casio watch, this PRO TREK is the ideal companion for nighttime outdoor activities. Luminous material beneath the digital display emits a soft glow that enhances visibility so you can quickly check the time in the dark. Just 1 minute of exposure to a 200-lumen mountaineering headlamp from 5 cm away can provide enough power to illuminate