Seiko 5

    The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.

    18 to 22 mm

    Listed by the maker for ref. SRPD51

    37 to 42.5 mm cases · 1968 to 2019

    Filter references by lug width
    Find your exact reference

    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.

    Collection15 references
    22 mm
    Illustration drawn to scale: 42 mm case, 22 mm lugs

    15 Seiko 5 references

    Seiko 5 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.

    • SRPD65K3

      Seiko 5

      22 mm

      Database

      42.5 mmBlack dialStainless steel

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

    • SRPD65K4

      Seiko 5

      22 mm

      Database

      42.5 mmBlack dialStainless steel

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

    • SRPH81J8

      Seiko 5

      20 mm

      Database

      39.4 mmBeige dialStainless steel

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

    • 5126‑6010

      Seiko 5 5126 Sports

      19 mm

      Database

      38 mm1968Silver dialSteel

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Snap steel
      Production
      1968-1971
      Status
      Listed in our database, not yet verified

    • 7009‑876A

      Seiko 5 Actus Gold

      19 mm

      Database

      37 mm1979Champagne dialYellow Gold

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Snap steel
      Production
      1979-1984
      Status
      Listed in our database, not yet verified

    • SNKE51K1

      Seiko 5 Dress

      20 mm

      Database

      39 mm

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

    • SNKE57K1

      Seiko 5 Dress (Gold)

      18 mm

      Database

      41 mm

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

    • 6119‑6050‑Rally

      Seiko 5 Rally Diver

      20 mm

      Database

      41 mm1969Black/Orange Rally dialSteel

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Screw steel
      Production
      1969-1973
      Status
      Listed in our database, not yet verified

    • 6139‑8002

      Seiko 5 Speedtimer

      19 mm

      Database

      40 mm1971Blue dialSteel

      Attachment
      classic lugs
      Movement
      Automatic Chronograph
      Caseback
      Screw steel
      Production
      1971-1977
      Status
      Listed in our database, not yet verified

    • SRPD55

      Seiko 5 Sports 5KX

      22 mm

      Database

      42 mm2019Black dialSteel

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2019, present
      Status
      Listed in our database, not yet verified

    • SRPD51

      Seiko 5 Sports 5KX Blue

      22 mm

      Maker

      42 mm2019Blue dialSteel

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2019, present
      Status
      Listed by the maker

    • SRPD53

      Seiko 5 Sports 5KX Pepsi

      22 mm

      Database

      42 mm2019Pepsi dialSteel

      Attachment
      classic lugs
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2019, present
      Status
      Listed in our database, not yet verified

    • SNK809K1

      Seiko 5 SNK809

      18 mm

      Database

      37 mm

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

    • SNKL23K1

      Seiko 5 SNKL23

      18 mm

      Database

      38 mm

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

    • SNZ327

      Seiko 5 Superior (Blue/Navy Dial)

      20 mm

      Database

      37.5 mmBlue/Navy dial

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

    FAQ

    What lug width does the Seiko 5 use?

    Seiko 5 lug width: 18 to 22 mm depending on the reference. The most common is 22 mm (5 of the 15 references with a listed width in our database). Find your exact reference in the table below. The Seiko 5 ref. SRPD51 takes 22 mm (listed by the maker).

    Do all Seiko 5 references take the same strap?

    No. 4 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 5 lug widths come from?

    From our database, which lists 15 Seiko 5 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 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.