Citizen Eco-Drive AT

    Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.

    21 mm

    From our database, not yet verified

    43 mm case

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

    Collection3 references
    21 mm
    Illustration drawn to scale: 43 mm case, 21 mm lugs

    Lug widths across the line

    The Citizen Eco-Drive AT takes a 21 mm strap: all 3 references with a listed width in our database use 21 mm. Check the reference on your case back to be sure.

    Filter references by lug width

    3 Citizen Eco-Drive AT references

    Citizen Eco-Drive AT 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.

    • AT2140‑55E

      Eco-Drive AT Sports Black

      21 mm

      Database

      43 mmBlack dialSteel

      Attachment
      classic lugs
      Movement
      Eco-Drive
      Caseback
      Screw steel
      Production
      2014, present
      Status
      Listed in our database, not yet verified

    • AT2140‑55L

      Eco-Drive AT Sports Blue

      21 mm

      Database

      43 mmBlue dialSteel

      Attachment
      classic lugs
      Movement
      Eco-Drive
      Caseback
      Screw steel
      Production
      2014, present
      Status
      Listed in our database, not yet verified

    • AT2140‑55A

      Eco-Drive AT Sports Silver

      21 mm

      Database

      43 mmSilver dialSteel

      Attachment
      classic lugs
      Movement
      Eco-Drive
      Caseback
      Screw steel
      Production
      2014, present
      Status
      Listed in our database, not yet verified

    FAQ

    What lug width does the Citizen Eco-Drive AT use?

    The Citizen Eco-Drive AT takes a 21 mm strap: all 3 references with a listed width in our database use 21 mm. Check the reference on your case back to be sure. These widths come from our database and are not yet verified.

    Where do these Citizen Eco-Drive AT lug widths come from?

    From our database, which lists 3 Citizen Eco-Drive AT references, 3 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.

    Other Citizen collections

    All Citizen collections

    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.