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GMB2100D-1A Watch in Dark Grey

$600

Color: Dark Grey

Size: 
OS
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The iconic G-Shock in a shockingly-slim, fully-metal octagonal construction

One thing mattered to Kikuo Ibe when he designed Casio’s G-Shock back in 1983: toughness. Everything we love about the iconic watch—the blocky shape, the encapsulating bezel, the serious water resistance—were all in service of that single goal. And sure, G-Shocks still hold their place at the pinnacle of horological durability, but they’re also stylish as hell. Unfussy, and utilitarian, it's a watch that can handle anything you put it up against. The all-new GMB2100 series breaks new ground with a shockingly-slim, all-metal construction and an unmistakably classic octagonal bezel. Jam-packed full of G-Shock’s signature impact-resistance and durability, and incorporating Bluetooth® technology to automatically adjust their timekeeping no matter where you are in the world, these are any collector’s dream.


  • A higher-end version of the famous G-Shock CasiOak with a case and bracelet made entirely of ion-plated stainless steel
  • Shockingly-slim construction sets new record for case slimness within CasiOak line
  • Ion-plated stainless-steel case, bezel, and band delivers high degree of impact resistance in a no-nonsense design
  • Octagonal stainless-steel bezel is formed by a meticulous process of forging, cutting, and polishing
  • Angled surfaces are polished to a mirror finish for ultimate comfort on the wrist
  • Dial is delicately shaped using microfabrication technology, then given an exquisite finish by thin-film deposition
  • Adjusts timekeeping automatically to maintain accuracy even when you cross time zones
  • Connects via Bluetooth® with a smartphone running the G-SHOCK Connected app to reference an online time server
  • Solar powered design ensures stable operation while using power-hungry functions
  • Long battery life can last for 7 months of normal use without exposure to light
  • Features G-Shock's Triple G Resist: shock resistant, centrifugal force resistant, vibration resistant
  • Limit one per customer
  • Case and Bezel: Ion-plated stainless steel
  • Band: Ion-plated stainless steel
  • Crystal: Sapphire glass with non-reflective coating
  • Lume: Neobrite
Product Specifications
Crystal Sapphire, spherical
Shock Resistant Yes
Water Resistance 200 m
Case/Bezel Material Stainless steel
Band Material Stainless steel
Crown Screw lock crown
Bezel Blue-ion plated bezel
Illumination Neobrite
LED Super Illuminator Afterglow
Time Auto calibration signal reception up to 6 times a day
Stopwatch 1/100 second
Measuring modes Elapsed time, split time, 1st-2nd place times
Alarms 5 daily alarms
Calendar Full auto to year 2099
Mobile Link Wireless linking using Bluetooth®
Hand Shift Hands move out of the way to provide unobstructed view of indial
Dual Time 38 time zones, home city time swapping, auto summer time switching
Date Display Date and day indicator
Hands Two hands (hour, minute (hand moves every 20 seconds))
Dials One dial (day)
Digital Hour, minute, second, pm, month, date, day
Accuracy +/- 15 seconds per month (w/o signal calibration or mobile link)
Approx Battery Life 7 months—normal use without light, 18 months—power save mode without light
Dimensions (mm) 49.8 × 44.4 × 12.8
Weight (g) 165

Email us at [email protected] for sizing guidance or other questions.

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