Casio G-Shock GM-2100

    Casio G-Shock GM-2100 strap sizes, reference by reference, as listed in our database.

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    Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.

    Collection5 references
    Illustration drawn to scale: 44 mm case, lug width not on record

    5 Casio G-Shock GM-2100 references

    Casio G-Shock GM-2100 references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.

    • GM‑2100‑2025

      G-Shock GM-2100 2025 Metal Bezel

      Integrated bracelet

      Database

      44.4 mm2025Analog-Digital dialSteel

      Attachment
      integrated
      Style
      field
      Movement
      Analog-Digital
      Caseback
      Solid back
      Production
      2025-present
      Status
      Listed in our database, not yet verified

    • GM‑2100N‑2A

      G-Shock GM-2100 Navy

      Integrated bracelet

      Database

      44 mmBlue dialSteel

      Attachment
      integrated
      Style
      field
      Movement
      Quartz ana-digi
      Caseback
      Screw steel
      Production
      2021, present
      Status
      Listed in our database, not yet verified

    • GM‑2100‑1A

      G-Shock GM-2100 Steel Black

      Integrated bracelet

      Database

      44 mmBlack dialSteel

      Attachment
      integrated
      Style
      field
      Movement
      Quartz ana-digi
      Caseback
      Screw steel
      Production
      2021, present
      Status
      Listed in our database, not yet verified

    • GM‑2100B‑3A

      G-Shock GM-2100 Steel Green

      Integrated bracelet

      Database

      44 mmGreen dialSteel

      Attachment
      integrated
      Style
      field
      Movement
      Quartz ana-digi
      Caseback
      Screw steel
      Production
      2021, present
      Status
      Listed in our database, not yet verified

    • GM‑2100NG‑1A

      G-Shock GM-2100 Steel Rose Gold

      Integrated bracelet

      Database

      44 mmBlack dialRose Gold

      Attachment
      integrated
      Style
      field
      Movement
      Quartz ana-digi
      Caseback
      Screw steel
      Production
      2022, present
      Status
      Listed in our database, not yet verified

    FAQ

    Where do these Casio G-Shock GM-2100 lug widths come from?

    From our database, which lists 5 Casio G-Shock GM-2100 references, 0 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.

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    Help

    What is lug width?

    The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

    Measure it in 30 seconds

    1. Take the strap off, or look at the back of it: many straps print their width.
    2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
    3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

    Strap, quick release or system?

    Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.