G-Shock GW-1800DJ-1A9 - Manual (Page 66)

E-65
Countdown Timer:
Measuring unit: 1/10 second
Input range: 1 to 60 minutes (1-minute increments)
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Illumination: LED (light-emitting diode)
Other: Battery power indicator; Power Saving; Button operation tone on/off
Power Supply: Solar cell and a rechargeable battery
Approximate Battery Operating Time
6 months (from full charge to Level 4 (CHG) when the watch is not exposed to
light) under the following conditions:
• Display on 18 hours per day, sleep state 6 hours per day
• 1 illumination operation (1.5 seconds) per day
• 10 seconds of alarm operation per day
• 10 minutes of signal reception per day
Frequent use of illumination can shorten battery operating time.