Oak & Oscar Humboldt

    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

    39.5 mm case

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

    Collection15 references
    20 mm
    Illustration drawn to scale: 39.5 mm case, 20 mm lugs

    Lug widths across the line

    The Oak & Oscar Humboldt takes a 20 mm strap: all 15 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

    15 Oak & Oscar Humboldt references

    Oak & Oscar Humboldt 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.

    • Humboldt Team Shuster Humboldt ‑ Grey

      20 mm

      Database

      39.5 mmGrey dial316L Stainless steel

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

    • Humboldt Team Shuster Humboldt ‑ Navy

      20 mm

      Database

      39.5 mmNavy dial316L Stainless steel

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

    • Humboldt The Humboldt 12‑hr ‑ Grey / Horween Leather Strap

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt 12‑hr ‑ Grey / Stainless Steel Bracelet

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt 12‑hr ‑ Navy / Horween Leather Strap

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt 12‑hr ‑ Navy / Stainless Steel Bracelet

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • ExP02‑Hum

      Humboldt The Humboldt ExP-02

      20 mm

      Database

      Matte gray dial

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

    • Humboldt The Humboldt GMT ‑ Black

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt GMT ‑ Navy

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt GMT ‑ White

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • HUMGMT26BLK

      Humboldt The Humboldt GMT 2026 Chicago Edition

      20 mm

      Database

      39.5 mm316L Stainless steel

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

    • Humboldt The Humboldt GMT SAR

      20 mm

      Database

      39.5 mmGrade 5 Titanium case and bezel

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

    • Humboldt The Humboldt GMT Titanium

      20 mm

      Database

      39.5 mmGrade 5 Titanium case and bezel

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

    • HMBDLTGMTUSSS01

      Humboldt The Humboldt GMT USSS Edition

      20 mm

      Database

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

    • Humboldt The Humboldt Seven Year

      20 mm

      Database

      39.5 mm316L Stainless steel mid-case and caseback

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

    FAQ

    What lug width does the Oak & Oscar Humboldt use?

    The Oak & Oscar Humboldt takes a 20 mm strap: all 15 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 Oak & Oscar Humboldt lug widths come from?

    From our database, which lists 15 Oak & Oscar Humboldt references, 15 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 Oak & Oscar collections

    All Oak & Oscar 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.