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GMAS2100PR-4A

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Join the fight against breast cancer with the all-pink GMA-P2110B, the fourth G-SHOCK watch created in support of pink ribbon campaigns. Based on the GMA-S2100 line, it features a soft pastel pink colour scheme with a pink ribbon-shaped indicator on the inset dial at the 9 o’clock position. The design combines simple, everyday beauty with thoughtful details that share your commitment to raising awareness.

The GMA-P2110B reflects the Casio commitment to pink ribbon campaigns, which raise awareness of the importance of early detection, diagnosis, and treatment of breast cancer. G-SHOCK and Pink Ribbon are natural allies, sharing a dedication to building a world where everyone can be healthy, is free to be themselves, and never held back by illness.

To join G-SHOCK and support the movement, keep an eye out for fundraising campaigns and events around the world during “Pink October,” breast cancer awareness month, when the pink ribbon is out in full force.

What is the pink ribbon movement? 

The pink ribbon is a universal symbol of various efforts involved with breast cancer. Medical organisations and support groups use it to promote accurate information about breast cancer, raise awareness of the importance of regular checkups, and support patients. October is recognised internationally as Breast Cancer Awareness Month, and the pink ribbon movement is especially active during this month with events and campaigns.

* Key resin components used in the bezel and band are made with bio-based resin. Produced using renewable organic resources, this material is expected to help reduce environmental impact.

G-SHOCK Pink Ribbon 2026

Join G-SHOCK in supporting breast cancer awareness!

Basic Information

  • Band
    Bio-based resin band
  • Case and bezel material
    Carbon / Bio-based 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
    140 to 205 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