Longines Spirit Pilot lug width

    The Longines Spirit Pilot takes a 20 mm strap: all 7 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure.

    20 mm

    Two sources agree on ref. L3.809.4.53.6 and L3.721.4.53.6

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

    Collection7 references
    20 mm
    Illustration drawn to scale: 39 mm case, 20 mm lugs

    Lug widths across the line

    The Longines Spirit Pilot takes a 20 mm strap: all 7 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

    7 Longines Spirit Pilot references

    Longines Spirit Pilot references in our database. Each row says where its width comes from: listed by the maker (linked to the maker's page), two independent sources agree, or listed in our database and not yet verified by us.
    Reference Lug width Case size Source
    Spirit Pilot L3.809.4.53.2 20 mm 39 mm Database
    Case material
    Stainless steel
    Dial
    Black matt
    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
    Spirit Pilot L3.809.4.53.6 20 mm 39 mm Two sources
    Case material
    Stainless steel
    Dial
    Black matt
    Attachment
    classic lugs
    Status
    Two sources agree
    Spirit Pilot L3.809.4.53.9 20 mm 39 mm Database
    Case material
    Stainless steel
    Dial
    Black matt
    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
    Spirit Pilot L3.809.4.93.6 20 mm 39 mm Database
    Case material
    Stainless steel
    Dial
    Blue matt
    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
    Spirit Pilot L3.809.4.93.9 20 mm 39 mm Database
    Case material
    Stainless steel
    Dial
    Blue matt
    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
    Spirit Pilot Flyback L3.721.4.53.2 20 mm 39.5 mm Database
    Case material
    Stainless steel and ceramic bezel
    Dial
    Black matt
    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
    Spirit Pilot Flyback L3.721.4.53.6 20 mm 39.5 mm Two sources
    Case material
    Stainless steel and ceramic bezel
    Dial
    Black matt
    Attachment
    classic lugs
    Status
    Two sources agree

    FAQ

    What lug width does the Longines Spirit Pilot use?

    The Longines Spirit Pilot takes a 20 mm strap: all 7 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure. The Longines Spirit Pilot ref. L3.809.4.53.6 and L3.721.4.53.6 take 20 mm (two independent sources agree).

    Where do these Longines Spirit Pilot lug widths come from?

    From our database, which lists 7 Longines Spirit Pilot references, 7 of them with a listed width. Each row of the table says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.

    Other Longines collections

    All Longines 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.