Marathon General Purpose Mechanical (GPM)

    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.

    16 mm

    Listed by the maker

    34 to 36 mm cases

    Find your exact reference

    Official page: Marathon

    Report an error

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

    Collection9 references
    16 mm
    Illustration drawn to scale: 34 mm case, 16 mm lugs

    Lug widths across the line

    The Marathon General Purpose Mechanical (GPM) takes a 16 mm strap: all 9 references with a listed width in our database use 16 mm. Check the reference on your case back to be sure.

    Filter references by lug width

    9 Marathon General Purpose Mechanical (GPM) references

    Marathon General Purpose Mechanical (GPM) 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.

    • WW194003BK‑0101

      General Purpose Mechanical (GPM) 34mm Black General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003BK‑0108

      General Purpose Mechanical (GPM) 34mm Black General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003DT‑0103

      General Purpose Mechanical (GPM) 34mm Desert Tan General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003DT‑0106

      General Purpose Mechanical (GPM) 34mm Desert Tan General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003SG‑0103

      General Purpose Mechanical (GPM) 34mm Sage Green General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003SG‑0106

      General Purpose Mechanical (GPM) 34mm Sage Green General Purpose Mechanical (GPM)

      16 mm

      Maker

      34 mm

    • WW194003SS‑0101

      General Purpose Mechanical (GPM) 36mm Officer's Mechanical (GPM)

      16 mm

      Maker

      36 mm

    • WW194003SS‑0108

      General Purpose Mechanical (GPM) 36mm Officer's Mechanical (GPM) on Nylon DEFSTAN

      16 mm

      Maker

      36 mm

    • WW194003SS‑0109

      General Purpose Mechanical (GPM) 36mm Officer's Mechanical (GPM) on Nylon DEFSTAN

      16 mm

      Maker

      36 mm

    FAQ

    What lug width does the Marathon General Purpose Mechanical (GPM) use?

    The Marathon General Purpose Mechanical (GPM) takes a 16 mm strap: all 9 references with a listed width in our database use 16 mm. Check the reference on your case back to be sure. The Marathon General Purpose Mechanical (GPM) ref. WW194003BK-0101, WW194003BK-0108 and 7 more take 16 mm (listed by the maker).

    Where do these Marathon General Purpose Mechanical (GPM) lug widths come from?

    From our database, which lists 9 Marathon General Purpose Mechanical (GPM) references, 9 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 Marathon collections

    All Marathon 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.