Dual Illuminator: Separate illumination of the analogue and digital components ensures optimum readability in low light conditions., Selectable illumination duration (1.5 seconds or 3 seconds), Super LED, With afterglow A high-capacity solar-charging system harnesses the power of any light source for reliable watch operation with minimal impact to the environment. 4 item BUTTON:Double gaskets are installed inside the cylindrical button casings. This is the secret to preventing incursion by mud. Daily Alarms: Each will sound every day at the time you set, Hourly time signal: The watch beeps every hour on the hour

Black Digital Watches by G-SHOCK: Black Watches for Men Black Digital Watches by G-SHOCK: Black Watches for Men

The button tones on the mode button can be switched off for discreet operation. Pre-set alarm or timer functions remain active. Measuring Capacity: 24 hours, Measuring Modes: Elapsed time, split time, 1st-2nd place times, Measuring Unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes)