Celebrate 50 years of Casio watches with a commemorative G-SHOCK timepiece that sparkles with Casio passion for new value and constant innovation.

The GMC-B2100ZE embodies the spirit of craftsmanship inspired by the excitement of ƒ??making something from nothingƒ?� ƒ?? the thrill of going from ƒ??0ƒ?� to ƒ??1.ƒ?�

This G-SHOCK full-metal chronograph features a black and gold color scheme that evokes the first flicker of light, that spark of innovative craftsmanship, where the creation of new value begins.

The single gold-color link on an otherwise black ion-plated band is a special touch that catches the eye, flickering like a light that breaks the darkness and illuminates the path to value innovation. The link is also laser engraved with ƒ??50th ANNIVERSARY.ƒ?� As a special design touch, the outer perimeter of the dial is printed with 0ƒ??s and 1ƒ??s, capturing the Casio devotion to the art of making something from nothing.¶ÿ

The screw-down crown is designed in the same octagonal shape as the bezel for a more compact timepiece with no sacrifice in outstanding G-SHOCK shock resistance.¶ÿ

High-density mounting keeps the chronograph module slim, while still providing the advanced functions you love in a compact profile and comfortable fit.

• Case / bezel material: Stainless steel
• Stainless Steel Band
• Solid Band
  
• One-touch 3-fold Clasp
  
• Mineral Glass
  
• Black ion plated case
  
• Black ion plated band
  
• 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)
  
• 1/100-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: ¶ñ15 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 Ç? 46.3 Ç? 12.4 mm
  
• Total weight : 171 g