Louis Erard Excellence

Most Louis Erard Excellence references take a 22 mm watch strap: 20 of 49. The lug width follows the case size: 39 mm case → 20 mm, 40 mm case → 23 mm and 42 mm case → 22 mm.

Shop 20 mm Shop 21 mm Shop 22 mm

Louis Erard Excellence lug width by case size

49 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
39 mm	20 mm	7	—	34238AA07.BVA26, 34238AA32.BVA134, 34238AA35.BVA133
40 mm	23 mm · 21 mm on 7	16	—	74359TT02.BTT88, 75357TT01.BTT83, 75357TT02.BTT88
42 mm	22 mm · 20 mm on 6	25	—	34237AA01.BVA31, 34237AA07.BVA25, 34237AA54.BVA38
43 mm	22 mm	1	—	74239AA01.BVA31

References that take a different watch strap

54230AA41.BDC02: 21 mm, not the 23 mm of most 40 mm cases
54230AG52.BDC02: 21 mm, not the 23 mm of most 40 mm cases
54230AG55.BDC02: 21 mm, not the 23 mm of most 40 mm cases
54230AG59.BDC02: 21 mm, not the 23 mm of most 40 mm cases
54230AS61.BVA08: 21 mm, not the 23 mm of most 40 mm cases
54230NS62.BVA09: 21 mm, not the 23 mm of most 40 mm cases
54230SG04.BAAV04: 21 mm, not the 23 mm of most 40 mm cases
34248AA05.BVA134: 20 mm, not the 22 mm of most 42 mm cases
34248AA06.BVA142: 20 mm, not the 22 mm of most 42 mm cases
34248AA08.BVA141: 20 mm, not the 22 mm of most 42 mm cases
34248AA44.BVA152: 20 mm, not the 22 mm of most 42 mm cases
34248AA64.BVA150: 20 mm, not the 22 mm of most 42 mm cases
34248AA66.BVA151: 20 mm, not the 22 mm of most 42 mm cases

Questions about the Louis Erard Excellence

Do all Louis Erard Excellence case sizes take the same watch strap?

No. The lug width changes with the case size: the 39 mm case takes 20 mm, the 40 mm case takes 23 mm and the 42 mm case takes 22 mm. Check your case diameter before you buy.

Can two Louis Erard Excellence watches with a 42 mm case take different watch straps?

Yes. Of the 25 Louis Erard Excellence references with a 42 mm case, 19 take 22 mm and 6 take 20 mm. The reference number decides, not the case size alone.