Longines Spirit

Most Longines Spirit references take a 22 mm watch strap: 50 of 112. The lug width follows the case size: 39 mm case → 21 mm, 40 mm case → 21 mm, 41 mm case → 20 mm and 42 mm case → 22 mm.

Shop 18 mm Shop 19 mm Shop 20 mm Shop 21 mm Shop 22 mm

Longines Spirit lug width by case size

112 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
27 mm	13 mm	4	—	L2.196.4.23.2, L2.196.4.23.6, L2.196.4.53.2
31 mm	15 mm	4	—	L2.198.4.23.2, L2.198.4.23.6, L2.198.4.53.2
36 mm	18 mm	4	—	L2.699.4.23.2, L2.699.4.23.6, L2.699.4.53.2
37 mm	20 mm · 19 mm on 2	6	—	L3.410.4.53.0, L3.410.4.63.2, L3.410.4.93.0
39 mm	21 mm	14	—	L3.802.1.53.6, L3.802.1.59.6, L3.802.4.50.6
40 mm	21 mm · 20 mm on 5	22	—	L3.810.1.53.2, L3.810.1.53.6, L3.810.2.99.2
41 mm	20 mm	8	—	L2.700.4.23.4, L2.700.4.23.6, L2.700.4.53.4
42 mm	22 mm	50	—	L3.811.1.53.2, L3.811.1.53.6, L3.811.4.03.2

References that take a different watch strap

L3.410.4.53.6: 19 mm, not the 20 mm of most 37 mm cases
L3.410.4.63.6: 19 mm, not the 20 mm of most 37 mm cases
L3.721.4.53.2: 20 mm, not the 21 mm of most 40 mm cases
L3.721.4.53.6: 20 mm, not the 21 mm of most 40 mm cases
L3.809.4.53.2: 20 mm, not the 21 mm of most 40 mm cases
L3.809.4.53.6: 20 mm, not the 21 mm of most 40 mm cases
L3.809.4.53.9: 20 mm, not the 21 mm of most 40 mm cases

Questions about the Longines Spirit

Do all Longines Spirit case sizes take the same watch strap?

No. The lug width changes with the case size: the 37 mm case takes 20 mm, the 39 mm case takes 21 mm, the 40 mm case takes 21 mm, the 41 mm case takes 20 mm and the 42 mm case takes 22 mm. Check your case diameter before you buy.