Omega Seamaster Railmaster

    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.

    19 mm

    Listed by the maker

    38 mm case

    Find your exact reference

    Official page: Omega

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

    Collection4 references
    19 mm
    Illustration drawn to scale: 38 mm case, 19 mm lugs

    Lug widths across the line

    The Omega Seamaster Railmaster takes a 19 mm strap: all 4 references with a listed width in our database use 19 mm. Check the reference on your case back to be sure.

    Filter references by lug width

    4 Omega Seamaster Railmaster references

    Omega Seamaster Railmaster 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.

    • 235.10.38.20.13.001

      Seamaster Railmaster 38mm - Brown on Bracelet

      19 mm

      Maker

      38 mmBrown dialSteel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • 235.12.38.20.13.001

      Seamaster Railmaster 38mm - Brown on Leather Strap

      19 mm

      Maker

      38 mmBrown dialSteel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • 235.10.38.20.06.001

      Seamaster Railmaster 38mm - Grey on Bracelet

      19 mm

      Maker

      38 mmGrey dialSteel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • 235.12.38.20.06.001

      Seamaster Railmaster 38mm - Grey on Leather Strap

      19 mm

      Maker

      38 mmGrey dialSteel

      Attachment
      classic lugs
      Status
      Listed by the maker

    FAQ

    What lug width does the Omega Seamaster Railmaster use?

    The Omega Seamaster Railmaster takes a 19 mm strap: all 4 references with a listed width in our database use 19 mm. Check the reference on your case back to be sure. The Omega Seamaster Railmaster ref. 235.10.38.20.13.001, 235.12.38.20.13.001 and 2 more take 19 mm (listed by the maker).

    Where do these Omega Seamaster Railmaster lug widths come from?

    From our database, which lists 4 Omega Seamaster Railmaster references, 4 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 Omega collections

    All Omega 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.