GMB2100AD-5A

Regular price $1,199.00
Size Chart

Add a touch of colour to your classic style — a full-metal G-SHOCK with vibrant blue dial. The dial is finished in metallic blue vapour deposition, adding a striking touch of originality to the iconic stainless-steel bezel and band design. Buffering components made of fine resin are installed between the bezel and case, with a three-pronged structure dispersing shocks to the band’s connecting pipes, to deliver all the shock resistance of a G-SHOCK in a full-metal timepiece. And the case back features a screw-lock construction to ensure a tight seal. The metal band pieces are dimpled to reproduce the look of the resin band design of the very first G-SHOCK. The stainless-steel bezel is meticulously forged, cut, and polished for stunning depth and dimension. A hairline finish is applied to the bezel top and a mirror finish to the beveled edges, creating a smart metal timepiece that truly shines.

2 year warranty

Basic Information

  • Band
    Stainless Steel Band, Solid Band, One-touch 3-fold Clasp
  • Case and bezel material
    Stainless steel
  • Case size (L × W × H)
    49.8 × 44.4 × 12.8 mm
  • Construction
    Shock Resistant
  • Power supply and battery life
    Tough Solar (Solar powered)
  • Time adjustment
    Bluetooth: Connects to a smartphone and automatically adjusts the time
  • Water resistance
    200-metre water resistance
  • Weight
    165 g

Exterior

  • Back plate
    Screw Lock Back
  • Compatible band size
    150 to 205 mm
  • Glass
    Mineral Glass
  • Other
    Neobrite

Smartphone Link / App Connectivity Features

  • App connectivity feature
    Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Time & place, Reminder, Phone finder
  • Apps
    CASIO WATCHES
  • Smartphone link feature
    Mobile link (Wireless linking using Bluetooth®)

Features

  • Accuracy
    Accuracy: ±15 seconds per month (with no mobile link function)
  • Alarm / hourly time signal
    5 daily alarms
    Hourly time signal
  • Battery display alert
    Battery level indicator
  • Calendar
    Full auto-calendar (to year 2099)
  • Energy saving feature
    Power Saving (display goes blank to save power when the watch is left in the dark)
  • Light
    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)
  • Mute feature
    Button operation tone on/off
  • Other features
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    12/24-hour format
    Date/month display swapping
    Day display (days of the week selectable in six languages)
    Regular timekeeping:
    Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode)
    Digital: Hour, minute, second, pm, month, date, day
  • Run time
    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)
  • Stopwatch
    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
  • Timer
    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)
  • World time
    World time
    38 time zones (38 cities + coordinated universal time), city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
    World time
    38 time zones (38 cities + coordinated universal time), city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
    World time
    38 time zones (38 cities + Coordinated Universal Time), city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

Slimline module design achieved with high density mounting

Employing a slim Tough Solar powered timekeeping module with Bluetooth® connectivity, the watch maintains the same sense of size as the previous GM-2100 while offering a wider range of functions and full-metal construction. While delivering high utility with Smartphone Link and Tough Solar functionality, the GM-B2100 offers a comfortable fit on the wrist as well.

Full metal shock-resistant structure with precision refinement

Buffering components made of fine resin are installed between the stainless-steel bezel and case to protect the module from shock. Undergoing meticulous processes of forging, cutting, and polishing, the bezel and case are precisely crafted down to the intricately shaped face, and also to the back, which is the key to the precision fit. Additionally, a three-pronged structure is employed for the lugs on the case to disperse shock to the connective part of the band.

Dial finishing achieved with microfabrication technology

Dual-layer dial construction is employed to present the inset dial and LCD portion with distinct finishes of their own. With a minute grind-mark finish and vapour deposition applied to the inset dial ring, laser welding used to secure it to the dial, and more, precision die moulding technologies applied by Yamagata Casio deliver an intricate form and meticulously detailed surface finish. In addition, the vapour deposition applied to the dimensional index marks and the indicator hand emphasises the metallic texture for a dial design that complements the watch’s metal exterior.

Three distinctive IP colours for full-metal design

In addition to brilliantly gleaming silver (GM-B2100D), two other options are offered: all-black IP for an intrepid look (GM-B2100BD) and fashionable rose gold IP (GM-B2100GD).

Solar-powered timekeeping with Bluetooth® for enhanced accuracy and reliability

Super Illuminator (high-brightness double LED light) for maintaining watch readability in the dark

*Image shows the GMB2100D-1A

Feature List

  • The national flag of Japan featuring a solid red circle centered on a white rectangular background with a black border.

    Made in Japan

  • Black icon of a watch hitting a flat surface with motion lines indicating a shock or impact.

    Shock resistant

  • Black icon of a person snorkeling with the number 20, representing a 20-bar pressure rating for water resistance.

    20 bar water resistant

  • Minimalist black icon of a person walking next to a simple clock face, representing punctuality or time management.

    Keeps yourself in time

  • Black icon of a smartwatch charging via solar energy with a battery level indicator and sun rays.

    Stable solar power

  • Black and white icon of a smartphone syncing time with an analog wristwatch via a wireless connection.

    Easy to operate via smartphone