Spinnaker Bradner GMT Automatic

    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.

    20 mm

    Listed by the maker

    42 mm case

    Find your exact reference

    Official page: Spinnaker

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

    Collection12 references
    20 mm
    Illustration drawn to scale: 42 mm case, 20 mm lugs

    Lug widths across the line

    The Spinnaker Bradner GMT Automatic takes a 20 mm strap: all 12 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure.

    Filter references by lug width

    12 Spinnaker Bradner GMT Automatic references

    Spinnaker Bradner GMT Automatic 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.

    • SP‑5121‑22

      Bradner GMT Automatic Abbott Brown

      20 mm

      Maker

      42 mmBrown dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑CC

      Bradner GMT Automatic Aquamarine Blue

      20 mm

      Maker

      42 mmBlue dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑77

      Bradner GMT Automatic Beige Linen

      20 mm

      Maker

      42 mmBeige dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑88

      Bradner GMT Automatic Blue Alps

      20 mm

      Maker

      42 mmBlue dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑44

      Bradner GMT Automatic Gravel Black

      20 mm

      Maker

      42 mmBlack dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑BB

      Bradner GMT Automatic Mystic Purple

      20 mm

      Maker

      42 mmPurple dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑66

      Bradner GMT Automatic Night Shadow

      20 mm

      Maker

      42 mmBlack dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑99

      Bradner GMT Automatic Ochre Yellow

      20 mm

      Maker

      42 mmYellow dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑AA

      Bradner GMT Automatic Orange Blue

      20 mm

      Maker

      42 mmBlue dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑55

      Bradner GMT Automatic Parisian Night

      20 mm

      Maker

      42 mmBlack dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑11

      Bradner GMT Automatic Sombre Red

      20 mm

      Maker

      42 mmBlack dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    • SP‑5121‑33

      Bradner GMT Automatic Uniform Grey

      20 mm

      Maker

      42 mmGrey dialStainless Steel

      Attachment
      classic lugs
      Status
      Listed by the maker

    FAQ

    What lug width does the Spinnaker Bradner GMT Automatic use?

    The Spinnaker Bradner GMT Automatic takes a 20 mm strap: all 12 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure. The Spinnaker Bradner GMT Automatic ref. SP-5121-22, SP-5121-CC and 10 more take 20 mm (listed by the maker).

    Where do these Spinnaker Bradner GMT Automatic lug widths come from?

    From our database, which lists 12 Spinnaker Bradner GMT Automatic references, 12 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 Spinnaker collections

    All Spinnaker 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.