Frederique Constant Heart Beat

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

19 to 22 mm

Verification: From our database, not yet verified

30 to 42 mm cases

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

Collection34 references

Illustration drawn to scale: 41 mm case, 22 mm lugs

34 Frederique Constant Heart Beat references

Frederique Constant 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‑310MBS5B6

Heart Beat Classic Index Automatic (Black Dial)

Lug width: 20 mm
Source: Database

Case size: 40 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAD2P4

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmMother of pearl dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAD2PD4

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmMother of pearl dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAD2PD6

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmMother of pearl dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAD2PD6B

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmMother of pearl dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAND2P4

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmBlue dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310HBAND2P6

Heart Beat FC Ladies Heart Beat Watch

Lug width: 19 mm
Source: Database

Case size: 34 mmBlue dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310MS5B6

Heart Beat Heart Beat Watch

Lug width: 20 mm
Source: Database

Case size: 40 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310MS5B6B

Heart Beat Heart Beat Watch

Lug width: 20 mm
Source: Database

Case size: 40 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑310MV5B4

Heart Beat Heart Beat Watch

Lug width: 20 mm
Source: Database

Case size: 40 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑315BS4C26B2

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 30 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915AS4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915AS4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915ASG4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915ASR4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915CDG4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915MC4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑915MC4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930ABS4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930ABS4H6B

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930ABS4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmBrown dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930AS4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930AS4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930MC4H6B

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930MC4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑930WRSN4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 41 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑935CDG4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 42 mmSilver dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑935MC4H6

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 42 mmCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑935MC4H6B

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 42 mmCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑935SABS4H9

Heart Beat Heart Beat Watch

Lug width: 22 mm
Source: Database

Case size: 42 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑315CS4C26

Heart Beat

Lug width: 22 mm
Source: Database

Case size: 30 mmBrown dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑315MPB4C26

Heart Beat

Lug width: 22 mm
Source: Database

Case size: 30 mmMother of pearl dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑315MS4C24

Heart Beat

Lug width: 22 mm
Source: Database

Case size: 30 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
FC‑315MSB4C26

Heart Beat

Lug width: 22 mm
Source: Database

Case size: 30 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified

FAQ

What lug width does the Frederique Constant Heart Beat use?

Frederique Constant Heart Beat lug width: 19 to 22 mm depending on the reference. The most common is 22 mm (24 of the 34 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 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 Heart Beat lug widths come from?

From our database, which lists 34 Frederique Constant Heart Beat references, 34 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

Take the strap off, or look at the back of it: many straps print their width.
Measure the inside gap between the lugs with a caliper or a millimetre ruler.
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.