Orient Star M45 F7 Small Second

    Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.

    20 mm

    Listed by the maker for ref. RE‑BS0003N, RK‑BS0001E and 2 more

    39 mm case

    Find your exact reference

    Official page: Orient Star

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

    Collection6 references
    20 mm
    Illustration drawn to scale: 39 mm case, 20 mm lugs

    Lug widths across the line

    The Orient Star M45 F7 Small Second takes a 20 mm strap: all 6 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

    6 Orient Star M45 F7 Small Second references

    Orient Star M45 F7 Small Second 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.

    • RE‑BS0001E00B

      m45 f7 small-second

      20 mm

      Database

      39 mmGreen dialStainless steel

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

    • RE‑BS0002S00B

      m45 f7 small-second

      20 mm

      Database

      39 mmIvory dialStainless steel

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

    • RE‑BS0003N

      m45 f7 small-second

      20 mm

      Maker

      39 mmGrey dialStainless steel (SUS316L)

      Attachment
      classic lugs
      Status
      Listed by the maker

    • RK‑BS0001E

      m45 f7 small-second

      20 mm

      Maker

      39 mmGreen dialStainless steel (SUS316L)

      Attachment
      classic lugs
      Status
      Listed by the maker

    • RK‑BS0002S

      m45 f7 small-second

      20 mm

      Maker

      39 mmIvory dialStainless steel (SUS316L)

      Attachment
      classic lugs
      Status
      Listed by the maker

    • RK‑BS0003N

      m45 f7 small-second

      20 mm

      Maker

      39 mmGrey dialStainless steel (SUS316L)

      Attachment
      classic lugs
      Status
      Listed by the maker

    FAQ

    What lug width does the Orient Star M45 F7 Small Second use?

    The Orient Star M45 F7 Small Second takes a 20 mm strap: all 6 references with a listed width in our database use 20 mm. Check the reference on your case back to be sure. The Orient Star M45 F7 Small Second ref. RE-BS0003N, RK-BS0001E and 2 more take 20 mm (listed by the maker).

    Where do these Orient Star M45 F7 Small Second lug widths come from?

    From our database, which lists 6 Orient Star M45 F7 Small Second references, 6 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 Orient Star collections

    All Orient Star 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.