A collection of full-metal descendants of the first-ever G-SHOCK — introducing the GMC-B2100 with a black bezel highlighting their iconic form.

The striking two-tone black-on-silver color scheme projects G-SHOCK toughness in a model sure to suit your personal style. 

The top bezel of the GMC-B2100BT is treated to a hairline finish, exuding the premium elegance of sophisticated metal texture. Indexes finished in silver-colored vapor deposition enhance visibility and add a beautiful contrast with the dial.

Crafted from stainless steel, the bezel undergoes meticulous processes of forging, cutting, and polishing to achieve an exquisite finish of depth and dimension. To achieve the same original G-SHOCK shock-resistant structure in a full-metal timepiece, buffering components made of fine resin are inserted between the stainless-steel bezel and case. And dimpling is applied to metal band pieces to reproduce the look of the very first G-SHOCK resin band design. 

And the fact that the watch is crafted at Yamagata Casio, the “mother factory” where the first ever G-SHOCK was made, brings the whole design full circle.

• Case / bezel material: Stainless steel
  
• Black ion plated bezel
  
• Solid stainless steel band
  
• One-touch 3-fold Clasp
  
• Mineral Glass
  
• Screw Lock Crown
  
• Neobrite
  
• Shock Resistant
  
• 200-meter water resistance
  
• Tough Solar (Solar powered)
  
• LED light (Super Illuminator)
  
• Afterglow
  
• LED:White
  
• Mobile link (Wireless linking using Bluetooth®)
  
• Dual time (Home City time swapping)
  
• 1-second stopwatch
  
• Measuring capacity: 23:59'59.
  
• Measuring modes: Elapsed time, split time
  
• Countdown timer
  
• Measuring unit: 1 second
  
• Countdown range: 24 hours
  
• Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
  
• Daily alarm
  
• Battery level indicator
  
• Power Saving (hands stop to save power when the watch is left in the dark)
  
• Full auto-calendar (to year 2099)
  
• Regular timekeeping:
  
• Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (mode and battery, dual time/stopwatch/countdown timer/alarm hour and minute, day)
  
• Day indicator
  
• Regular timekeeping:
  
• Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
  
• Accuracy: ±15 seconds per month (with no mobile link function)
  
• Approx. battery operating time:
  5 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 : 51.3 × 46.3 × 12.4 mm
  
• Total weight : 171 g