Breguet Classique

Most Breguet Classique references take a 20 mm watch strap: 51 of 141. The lug width follows the case size: 30 mm case → 16 mm, 38 mm case → 20 mm, 39 mm case → 20 mm and 43 mm case → 22 mm.

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Breguet Classique lug width by case size

141 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
30 mm	16 mm · 18 mm on 1	19	—	8067BA/52/964, 8067BB/52/964, 8067BB/52/BC0
34 mm	17 mm · 20 mm on 1	7	—	9067BB/12/976, 9067BR/12/976, 9068BB/12/976/DD00
36 mm	18 mm · 20 mm on 1	6	—	5930BA/12/986, 8787BR/29/986, 8788BB/12/986/DD00
38 mm	20 mm · 18 mm on 9	23	—	5157BB/11/9V6, 5157BR/11/9V6, 5177BA/12/9V6
39 mm	20 mm · 18 mm on 10	29	—	5327BB/1E/9V6, 5327BR/1E/9V6, 5707BA/12/9V6
40 mm	21 mm · 18 mm on 2 · 20 mm on 1	8	—	5140BB/12/9W6, 7147BB/12/9WU, 7147BB/29/9WU
41 mm	21 mm	2	—	7727BB/12/9WU, 7727BR/12/9WU
43 mm	22 mm · 18 mm on 4	12	—	5287BR/12/9ZU, 5717BR/AS/9ZU, 5717BR/EU/9ZU
46 mm	18 mm · 24 mm on 1	3	—	5719PT/EU/9ZV/DD0D, 5719PT/US/9ZV/DD0D
48 mm	24 mm · 20 mm on 1	3	—	7800BA/11/9YV, 7800BB/11/9YV
not recorded	20 mm · 21 mm on 4 · 23 mm on 4 · 18 mm on 3 · 22 mm on 2 · 18.5 mm on 1 · 24 mm on 1	29	—	3757PT1E9V6, 5177BR2N9V602, 5177PT-2N-9V601

References that take a different watch strap

8067BA/52/AC0: 18 mm, not the 16 mm of most 30 mm cases
9065BR/5T/976/DD00: 20 mm, not the 17 mm of most 34 mm cases
5930BB/12/986: 20 mm, not the 18 mm of most 36 mm cases
5157BA/11/9V6: 18 mm, not the 20 mm of most 38 mm cases
5177BA/12/AV0: 18 mm, not the 20 mm of most 38 mm cases
5177BB/12/9V6: 18 mm, not the 20 mm of most 38 mm cases
5177BB/12/BV0: 18 mm, not the 20 mm of most 38 mm cases
5177BB/15/9V6: 18 mm, not the 20 mm of most 38 mm cases
5177BB/29/BV0: 18 mm, not the 20 mm of most 38 mm cases
5177BR/12/9V6: 18 mm, not the 20 mm of most 38 mm cases
5177BR/29/RV0: 18 mm, not the 20 mm of most 38 mm cases
5277BB/12/9V6: 18 mm, not the 20 mm of most 38 mm cases
5327BB/1E/BV0: 18 mm, not the 20 mm of most 39 mm cases
5327BR/1E/RV0: 18 mm, not the 20 mm of most 39 mm cases
5707BA/12/AV0: 18 mm, not the 20 mm of most 39 mm cases
5707BB/12/9V6: 18 mm, not the 20 mm of most 39 mm cases
5707BB/12/BV0: 18 mm, not the 20 mm of most 39 mm cases
7137BA/11/9V6: 18 mm, not the 20 mm of most 39 mm cases
7137BB/11/BV0: 18 mm, not the 20 mm of most 39 mm cases
7337BA/1E/AV0: 18 mm, not the 20 mm of most 39 mm cases
7337BB/1E/BV0: 18 mm, not the 20 mm of most 39 mm cases
7337BR/1E/RV0: 18 mm, not the 20 mm of most 39 mm cases
5140BA/12/9W6: 18 mm, not the 21 mm of most 40 mm cases
5140BA/29/9W6: 18 mm, not the 21 mm of most 40 mm cases

And 22 more in the full list below.

Questions about the Breguet Classique

Do all Breguet Classique case sizes take the same watch strap?

No. The lug width changes with the case size: the 30 mm case takes 16 mm, the 38 mm case takes 20 mm, the 39 mm case takes 20 mm, the 40 mm case takes 21 mm and the 43 mm case takes 22 mm. Check your case diameter before you buy.

Can two Breguet Classique watches with a 39 mm case take different watch straps?

Yes. Of the 29 Breguet Classique references with a 39 mm case, 19 take 20 mm and 10 take 18 mm. The reference number decides, not the case size alone.