Tudor Big Block

    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

    From our database, not yet verified

    40 mm case · 1976 to 1988

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

    Collection6 references
    20 mm
    Illustration drawn to scale: 40 mm case, 20 mm lugs

    Lug widths across the line

    The Tudor Big Block takes a 20 mm strap: all 6 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

    6 Tudor Big Block references

    Tudor Big Block 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.

    • 9430/0

      Big Block Chronograph

      20 mm

      Database

      40 mm1976Black dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1976-1980
      Status
      Listed in our database, not yet verified

    • 94200/0

      Big Block Chronograph

      20 mm

      Database

      40 mm1978Black dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1978-1988
      Status
      Listed in our database, not yet verified

    • 94210/0

      Big Block Chronograph

      20 mm

      Database

      40 mm1978Blue dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1978-1988
      Status
      Listed in our database, not yet verified

    • 79160

      Big Block Chronograph

      20 mm

      Database

      40 mm1988Black dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1988-1995
      Status
      Listed in our database, not yet verified

    • 79170

      Big Block Chronograph

      20 mm

      Database

      40 mm1988Black (Rotating Bezel) dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1988-1995
      Status
      Listed in our database, not yet verified

    • 79180

      Big Block Chronograph

      20 mm

      Database

      40 mm1988Silver (Steel Bezel) dialSteel

      Attachment
      classic lugs
      Style
      chrono
      Movement
      Automatic Chronograph
      Caseback
      Screw-down steel
      Production
      1988-1995
      Status
      Listed in our database, not yet verified

    FAQ

    What lug width does the Tudor Big Block use?

    The Tudor Big Block takes a 20 mm strap: all 6 references with a listed width in our database use 20 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 Tudor Big Block lug widths come from?

    From our database, which lists 6 Tudor Big Block references, 6 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.