Frederique Constant Classic Perpetual Calendar Manufacture

    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. FC‑776ONB3H7 and FC‑776S3H6

    40 mm case

    Find your exact reference

    Official page: Frederique Constant

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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: 40 mm case, 20 mm lugs

    Lug widths across the line

    The Frederique Constant Classic Perpetual Calendar Manufacture 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 Frederique Constant Classic Perpetual Calendar Manufacture references

    Frederique Constant Classic Perpetual Calendar Manufacture 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.

    • FC‑776ONB3H7

      Classic Perpetual Calendar Manufacture Black Onyx Gold

      20 mm

      Maker

      40 mmBlack dial18 karat yellow gold

      Style
      dress
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2018, present
      Status
      Listed by the maker

    • FC‑776SAL3H6

      Classic Perpetual Calendar Manufacture Salmon Steel

      20 mm

      Database

      40 mmSalmon dialStainless steel

      Style
      dress
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2018, present
      Status
      Listed in our database, not yet verified

    • FC‑776S3H6

      Classic Perpetual Calendar Manufacture Silver

      20 mm

      Maker

      40 mmSilver-tone dialStainless steel

      Style
      dress
      Movement
      Automatic
      Caseback
      Screw-down steel
      Production
      2018, present
      Status
      Listed by the maker

    FAQ

    What lug width does the Frederique Constant Classic Perpetual Calendar Manufacture use?

    The Frederique Constant Classic Perpetual Calendar Manufacture 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. The Frederique Constant Classic Perpetual Calendar Manufacture ref. FC-776ONB3H7 and FC-776S3H6 take 20 mm (listed by the maker).

    Where do these Frederique Constant Classic Perpetual Calendar Manufacture lug widths come from?

    From our database, which lists 3 Frederique Constant Classic Perpetual Calendar Manufacture references, 3 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 Frederique Constant collections

    All Frederique Constant 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.