IWC Ingenieur SL

    IWC Ingenieur SL strap sizes, reference by reference, as listed in our database.

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

    Collection5 references
    Illustration drawn to scale: 40 mm case, lug width not on record

    5 IWC Ingenieur SL references

    IWC Ingenieur SL 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.

    • IW1832

      Ingenieur SL “Jumbo”

      Integrated bracelet

      Database

      40 mm1976Black dialSteel

      Attachment
      integrated
      Style
      integrated
      Movement
      Automatic
      Caseback
      Screw steel
      Production
      1976-1984
      Status
      Listed in our database, not yet verified

    • IW9232

      Ingenieur SL “Jumbo” Steel/Gold

      Integrated bracelet

      Database

      40 mm1979Champagne dialYellow Gold

      Attachment
      integrated
      Style
      integrated
      Movement
      Automatic
      Caseback
      Screw steel
      Production
      1979-1984
      Status
      Listed in our database, not yet verified

    • IW3305‑TT‑1978

      Ingenieur SL 2-Tone Quartz

      Integrated bracelet

      Database

      40 mm1978Silver dialYellow Gold

      Attachment
      integrated
      Style
      integrated
      Movement
      Quartz
      Caseback
      Screw steel
      Production
      1978-1983
      Status
      Listed in our database, not yet verified

    • IW3303

      Ingenieur SL Quartz

      Integrated bracelet

      Database

      40 mm1977Silver dialSteel

      Attachment
      integrated
      Style
      integrated
      Movement
      Quartz
      Caseback
      Screw steel
      Production
      1977-1983
      Status
      Listed in our database, not yet verified

    • IW3303‑RARE‑1979

      Ingenieur SL Quartz Rare

      Integrated bracelet

      Database

      40 mm1979Black dialSteel

      Attachment
      integrated
      Style
      integrated
      Movement
      Quartz
      Caseback
      Screw steel
      Production
      1979-1983
      Status
      Listed in our database, not yet verified

    FAQ

    Where do these IWC Ingenieur SL lug widths come from?

    From our database, which lists 5 IWC Ingenieur SL references, 0 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 IWC collections

    All IWC 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.