Tudor Black Bay 54

    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 for ref. M79000B‑0001

    37 mm case · 2026

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    Official page: Tudor

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

    Collection5 references
    20 mm
    Illustration drawn to scale: 37 mm case, 20 mm lugs

    Lug widths across the line

    The Tudor Black Bay 54 takes a 20 mm strap: all 5 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

    5 Tudor Black Bay 54 references

    Tudor Black Bay 54 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.

    • M79000‑0001

      Black Bay 54

      20 mm

      Database

      37 mmBlue / Navy dialSteel

      Attachment
      classic lugs
      Status
      Listed in our database, not yet verified

    • M79000B‑0001

      Black Bay 54 2026 Update

      20 mm

      Maker

      37 mm2026Black dialSteel

      Attachment
      classic lugs
      Style
      diver
      Movement
      Automatic
      Caseback
      Solid back
      Production
      verified-source
      Status
      Listed by the maker

    • M79000N‑0001

      Black Bay 54 Black bracelet

      20 mm

      Database

      37 mm

      Attachment
      classic lugs
      Status
      Listed in our database, not yet verified

    • M79000N‑0002

      Black Bay 54 Black rubber strap

      20 mm

      Database

      37 mm

      Attachment
      classic lugs
      Status
      Listed in our database, not yet verified

    • M79000B‑0002

      Black Bay 54 Blue rubber strap (2026)

      20 mm

      Database

      37 mm

      Attachment
      classic lugs
      Status
      Listed in our database, not yet verified

    FAQ

    What lug width does the Tudor Black Bay 54 use?

    The Tudor Black Bay 54 takes a 20 mm strap: all 5 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure. The Tudor Black Bay 54 ref. M79000B-0001 takes 20 mm (listed by the maker).

    Where do these Tudor Black Bay 54 lug widths come from?

    From our database, which lists 5 Tudor Black Bay 54 references, 5 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 Tudor collections

    All Tudor 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.