Frederique Constant Double Heart Beat

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

    14 to 19 mm

    From our database, not yet verified

    28 to 37 mm cases

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

    Collection13 references
    19 mm
    Illustration drawn to scale: 34 mm case, 19 mm lugs

    13 Frederique Constant Double Heart Beat references

    Frederique Constant Double Heart Beat 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‑310BDHB2PD6

      Double Heart Beat FC Ladies Double Heart Beat Watch

      19 mm

      Database

      37 mmDark grey dialStainless steel

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

    • FC‑310LGDHB3B6

      Double Heart Beat FC Ladies Double Heart Beat Watch

      18 mm

      Database

      34 mmBeige dialStainless steel

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

    • FC‑310NDHB3B4

      Double Heart Beat FC Ladies Double Heart Beat Watch

      18 mm

      Database

      34 mmBlue dialStainless steel

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

    • FC‑310BDHB2PPV6

      Double Heart Beat Double Heart Beat Watch

      19 mm

      Database

      34 mmDark grey dialStainless steel

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

    • FC‑310CDHB1PD4

      Double Heart Beat Double Heart Beat Watch

      14 mm

      Database

      28 mmBrown dialStainless steel

    • FC‑310DHB1P6

      Double Heart Beat Double Heart Beat Watch

      14 mm

      Database

      34 mmWhite dialStainless steel

    • FC‑310DHB1P6B

      Double Heart Beat Double Heart Beat Watch

      14 mm

      Database

      28 mmWhite dialStainless steel

    • FC‑310DHBPV2PD6

      Double Heart Beat Double Heart Beat Watch

      19 mm

      Database

      34 mmWhite dialStainless steel

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

    • FC‑310GDHB2P4

      Double Heart Beat Double Heart Beat Watch

      19 mm

      Database

      34 mmBlue dialStainless steel

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

    • FC‑310LGDHB3B2B

      Double Heart Beat Double Heart Beat Watch

      18 mm

      Database

      34 mmBeige dialStainless steel

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

    • FC‑310PDHB1P6B

      Double Heart Beat Double Heart Beat Watch

      14 mm

      Database

      28 mmWhite dialStainless steel

    • FC‑310WDHB3BD6B

      Double Heart Beat Double Heart Beat Watch

      18 mm

      Database

      34 mmWhite dialStainless steel

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

    • FC‑310WHF2P6

      Double Heart Beat Double Heart Beat Watch

      19 mm

      Database

      34 mmWhite dialStainless steel

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

    FAQ

    What lug width does the Frederique Constant Double Heart Beat use?

    Frederique Constant Double Heart Beat lug width: 14 to 19 mm depending on the reference. The most common is 19 mm (5 of the 13 references with a listed width in our database). Find your exact reference in the table below. These widths come from our database and are not yet verified.

    Do all Frederique Constant Double Heart Beat 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 Frederique Constant Double Heart Beat lug widths come from?

    From our database, which lists 13 Frederique Constant Double Heart Beat references, 13 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.