Seiko Chronograph Automatic lug width

    The Seiko Chronograph Automatic takes a 20 mm strap: all 3 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure.

    20 mm

    From our database, not yet verified

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

    Collection3 references
    20 mm
    Illustration drawn to scale: 41 mm case, 20 mm lugs

    Lug widths across the line

    The Seiko Chronograph Automatic takes a 20 mm strap: all 3 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

    3 Seiko Chronograph Automatic references

    Seiko Chronograph Automatic 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 Year Source
    Chronograph Automatic Limited SRQ037J1 20 mm 42 mm 2021 Database
    Year
    2021
    Case material
    Steel
    Dial
    Black/Gold
    Attachment
    classic lugs
    Style
    chrono
    Movement
    Automatic Chronograph
    Caseback
    Display back
    Production
    2021, present
    Status
    Listed in our database, not yet verified
    Chronograph Automatic SRQ Black SRQ029 20 mm 41 mm 2019 Database
    Year
    2019
    Case material
    Steel
    Dial
    Black
    Attachment
    classic lugs
    Style
    chrono
    Movement
    Automatic Chronograph
    Caseback
    Display back
    Production
    2019, present
    Status
    Listed in our database, not yet verified
    Chronograph Automatic SRQ White SRQ031 20 mm 41 mm 2019 Database
    Year
    2019
    Case material
    Steel
    Dial
    White
    Attachment
    classic lugs
    Style
    chrono
    Movement
    Automatic Chronograph
    Caseback
    Display back
    Production
    2019, present
    Status
    Listed in our database, not yet verified

    FAQ

    What lug width does the Seiko Chronograph Automatic use?

    The Seiko Chronograph Automatic takes a 20 mm strap: all 3 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 Seiko Chronograph Automatic lug widths come from?

    From our database, which lists 3 Seiko Chronograph Automatic references, 3 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 Seiko collections

    All Seiko 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.