Smart and stylish, sleek and sophisticated — a GBM-2100 with bold metal bezel that delivers Smartphone Link and Tough Solar charging system, all in the same compact size. 

Key resin components used in the case and band are made with environmentally responsible bio-based resin. 

Choose your favorite color combination of vapor deposition finishes — the GBM-2100A-2B with blue dial and silvery indexes, the GBM-2100A-4B with burgundy dial and silvery indexes, or the GBM-2100A-8B with light yellow gold-colored dial and black accented indexes. 

Tough construction and stylish design in a timepiece that takes you from casual settings to business meetings with ease.

• Case / bezel material: Bio-based Resin / Stainless steel 
  
• Bio-based resin band
  
• Shock Resistant 
  
• Neobrite 
  
• Mineral Glass
  
• 200-meter water resistance
  
• Tough Solar (Solar powered)
  
• Double LED light
  
• LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  
• LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
  
• LED:White
  
• Mobile link (Wireless linking using Bluetooth®) 
  
• World time 
  
• 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping
  
• 1/100-second stopwatch
  
• Measuring capacity: 
  00'00''00~59'59''99 (for the first 60 minutes)
  1:00'00~23:59'59 (after 60 minutes)
  
• Measuring unit: 
  1/100 second (for the first 60 minutes)
  1 second (after 60 minutes)
  
• Measuring modes: Elapsed time, lap/split time
  
• Countdown timer
  
• Measuring unit: 1 second
  
• Countdown range: 60 minutes
  
• Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
  
• 5 daily alarms
  
• Hourly time signal
  
• Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  
• Battery level indicator
  
• Full auto-calendar (to year 2099) 
  
• 12/24-hour format 
  
• Button operation tone on/off
  
• Power Saving (display goes blank to save power when the watch is left in the dark)
  
• Date/month display swapping
  
• Day display (days of the week selectable in six languages)
  
• Regular timekeeping:
  
• Analog: 2 hands (hour, minute (hands move every 20 seconds)), 1 dial (battery level, mode)
  
• Digital: Hour, minute, second, pm, month, date, day
  
• Accuracy: ±15 seconds per month (with no mobile link function)
  
• Approx. battery operating time:
  
• 7 months on rechargeable battery (operation period with normal use without exposure to light after charge)
  
• 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
  
• Size of case : 49.3 × 44.4 × 11.9 mm
  
• Total weight : 78 g