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GM2100-1A Watch in Black


Color: Black

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This item is available for continental US delivery only.

The iconic G-Shock in a super-sleek 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 GM2100 series breaks new ground with a sleek, sharp stainless-steel-and-resin construction and an unmistakably classic octagonal bezel. Jam-packed full of G-Shock’s signature impact-resistance and durability, these are any collector’s dream.

  • A new twist on the famous G-Shock CasiOak with a super-sleek stainless steel and resin construction
  • Stainless-steel and resin case and bezel 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
  • Dial is finished with vapor deposition finish for a meticulously detailed metallic look that suits a classic metal G-Shock timepiece
  • Long battery life can last for three years with two SR726W batteries
  • Case and Bezel: Stainless steel, resin
  • Band: Resin
  • Crystal: Mineral glass
  • Lume: Neobrite
Product Specifications
Crystal Mineral glass
Shock Resistant Yes
Water Resistance 200 m
Case/Bezel Material Stainless steel and resin
Band Material Resin band
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
Hand Shift Hands move out of the way to provide unobstructed view of indial
Dual Time 31 time zones, 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
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) 49.3 × 44.4 × 11.8
Weight (g) 72

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

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