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G-SHOCK

GMAS2100-4A2

$209.00 $279.00

This product cannot be returned or exchanged unless faulty.

Sale terms and conditions

This series downsizes the GA-2100 to create a simple and slim design. The octagonal bezel, flat face, simple bar hour markers, and carbon core guard structure that are distinctive features of the GA-2100 are now available in a compact configuration.

2 year warranty

Basic Information
  • Band
    Resin Band
  • Case and bezel material
    Carbon / Resin
  • Case size (L × W × H)
    46.2 × 42.9 × 11.2 mm
  • Construction
    Shock Resistant, Carbon Core Guard structure
  • Power supply and battery life
    Approx. battery life: 3 years on SR726W X 2, Approx. battery life: 3 years on CR1025
  • Water resistance
    200-metre water resistance
  • Weight
    41 g

Exterior
  • Compatible band size
    125 to 180 mm
  • Glass
    Mineral Glass
  • Other
    Neobrite

Features
  • Accuracy
    Accuracy: ±15 seconds per month
  • Alarm / hourly time signal
    5 daily alarms
    Hourly time signal
  • Calendar
    Full auto-calendar (to year 2099)
  • 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
    12/24-hour format
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    Regular timekeeping:
    Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
    Digital: Hour, minute, second, pm, month, date
    Analog: 2 hands (hour, minute (hand moves every 20 seconds))
    Digital: Hour, minute, second, pm, month, date, day
  • 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, split time, 1st-2nd place times
    Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes)
    Measuring unit: 1/100 second (for the first 60 minutes)
  • Timer
    Countdown timer
    Measuring unit: 1 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
  • World time
    World time
    31 time zones (48 cities + coordinated universal time), daylight saving on/off
User Manual – Module 5611

A compact size that’s easy to wear

The GMA-S2100, already a smaller version of the GA-2100, is now even more compact. The length of the band has also been adjusted for easier wearability, resizing this timepiece to comfortably fit even slimmer wrists.

Feature List

  • 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 and white icon of a wristwatch face featuring the word CASUAL in bold, centered sans-serif text.

    Casual design

  • Minimalist black icon of a wristwatch with a white circular face featuring the word SPORTY in bold black text.

    Sporty design

  • Two black minimalist watch icons of different sizes with circular faces on a white background.

    Enjoy it as a pair

  • Bold black text reading MATTE in a clean, sans-serif font centered on a plain white background.

    Cool matte color
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