Power Saving (display goes blank to save power when the watch is left in the dark). Button operation tone on/off. LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow).
Casio Pro Trek Grey Dial Tough Solar Sports 100M PRJ-B001B-2 Men’s Watch
Water Resistance: 100M. Features: 1/100-Second Stopwatch, Full Auto-Calendar, 100M Water Resistance. Series: Pro Trek. Luminiscence: Hands And Dial Markers. Dial Markers: Index. Color: Grey. Hands: Luminous Hands.