Seiko Prospex Sea lug width

    Seiko Prospex Sea lug width: 16 to 22 mm depending on the reference. The most common is 20 mm (9 of the 11 references with a listed width in our database). Find your exact reference in the table below.

    16 to 22 mm

    Listed by the maker for ref. SUR620J1

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    Official page: Seiko

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

    Collection11 references
    20 mm
    Illustration drawn to scale: 42 mm case, 20 mm lugs

    11 Seiko Prospex Sea references

    Seiko Prospex Sea 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.

    • SBDC125

      Prospex Sea

      20 mm

      Database

      42 mmBlack dialStainless steel

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

    • SBDC127

      Prospex Sea

      20 mm

      Database

      42 mmBlue dialStainless steel

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

    • SBDC133

      Prospex Sea

      20 mm

      Database

      42 mmGreen dialStainless steel

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

    • SBDC150

      Prospex Sea

      20 mm

      Database

      42 mmBrown dialStainless steel

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

    • SBDC167

      Prospex Sea

      20 mm

      Database

      42 mmBlue dialStainless steel

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

    • SBDY103

      Prospex Sea

      20 mm

      Database

      42.3 mmBlack dialStainless steel

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

    • SPB207J1

      Prospex Sea

      20 mm

      Database

      42 mmGreen dialStainless steel

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

    • SPB240J1

      Prospex Sea

      20 mm

      Database

      42 mmBrown dialStainless steel

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

    • SRPG17K1

      Prospex Sea

      20 mm

      Database

      42.4 mmBlack dialStainless steel

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

    • SRPF03

      Prospex Sea (Black Dial)

      22 mm

      Database

      43.8 mmBlack dial

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

    • SUR620J1

      Prospex Sea SUR620

      16 mm

      Maker

      34 mmStainless steel

      Attachment
      Stainless steel bracelet
      Style
      diver
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2021, present
      Status
      Listed by the maker

    FAQ

    What lug width does the Seiko Prospex Sea use?

    Seiko Prospex Sea lug width: 16 to 22 mm depending on the reference. The most common is 20 mm (9 of the 11 references with a listed width in our database). Find your exact reference in the table below. The Seiko Prospex Sea ref. SUR620J1 takes 16 mm (listed by the maker).

    Do all Seiko Prospex Sea references take the same strap?

    No. 3 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.

    Where do these Seiko Prospex Sea lug widths come from?

    From our database, which lists 11 Seiko Prospex Sea references, 11 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 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.