Longines GrandeVitesse

Most Longines GrandeVitesse references take a 20 mm watch strap: 23 of 30. The lug width follows the case size: 42 mm case → 20 mm and 44 mm case → 22 mm.

Shop 20 mmShop 22 mm

Longines GrandeVitesse lug width by case size

30 references measured. Updated 2026-10-29.

CaseLug widthReferencesWatch strap attachmentFor example
42 mm20 mm · 22 mm on 124—L3.635.4.06.2, L3.635.4.06.6, L3.635.4.06.9
44 mm22 mm6—L3.637.4.50.0, L3.637.4.50.6, L3.637.4.60.0

References that take a different watch strap

Questions about the Longines GrandeVitesse

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

No. The lug width changes with the case size: the 42 mm case takes 20 mm and the 44 mm case takes 22 mm. Check your case diameter before you buy.

Every Longines GrandeVitesse reference