G-Shock Digital Watch GD100-1B / GD-100-1B

Based on the successful Analogue/digital GA100 G-Shock. This is an all digital version in a large size and wide face which not only gives a look of power and strength but makes it extremely easy-to-read and use with its oversized buttons. For added visibilty in dark conditions a newly designed high-density LED light has been employed to light up the dial face from behind. The result is a super luminous display that's a true reflection of G-Shock's desire to keep improving timekeeping.

Specifications:

• Mineral Crystal Glass
• Shock Resistant
• 200 metre Water Resistant
• Case / Bezel Material: Resin
• Band Material: Resin
• Auto LED Backlight (Super Illuminator)
• 5 Independent Alarms (one-time or daily)
• Hourly Time Signal
• Flash alert: flasher with buzzer that sounds for alarms hourly time signal countdown timer time-up alarm countdown timer & progress beeper
• World Time: 31 time zones (48 cities + UTC) city code display daylight saving on/off
• Stopwatch
  • 1/100-second stopwatch 
  • Measuring capacity: 23:59'59.99'' 
  • Measuring modes: Elapsed time split time & 1st-2nd place times
• Countdown timer
  • Measuring unit: 1/10 second range:
  • 24 hours start time 
  • Setting range: 1 minute to 24 hours (1-second increments 1-minute increments and 1-hour increments)
  • Progress beeper
• Full auto-calendar (to year 2099)
• Accuracy: ±15 seconds per month
• Battery life - approx 7 years
• Battery - CR2025
• Size: 55.0 x 51.2 x 17.4mm
• Weight: 72g