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Longines Symphonette

Most Longines Symphonette references take a 9 mm watch strap: 21 of 69. The lug width follows the case size: 16 mm case → 8 mm, 19 mm case → 9 mm, 22 mm case → 11 mm and 25 mm case → 13 mm.

Longines Symphonette lug width by case size

69 references measured. Updated 2026-10-29.

CaseLug widthReferencesWatch strap attachmentFor example
16 mm8 mm16—L2.304.0.57.0, L2.304.0.57.6, L2.304.0.71.0
19 mm9 mm21—L2.305.0.57.0, L2.305.0.57.6, L2.305.0.71.0
22 mm11 mm16—L2.306.0.57.0, L2.306.0.57.6, L2.306.0.71.0
25 mm13 mm16—L2.307.0.57.0, L2.307.0.57.6, L2.307.0.71.0

Questions about the Longines Symphonette

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

No. The lug width changes with the case size: the 16 mm case takes 8 mm, the 19 mm case takes 9 mm, the 22 mm case takes 11 mm and the 25 mm case takes 13 mm. Check your case diameter before you buy.

Every Longines Symphonette reference

Other Longines families

Inside each one the lug width often changes: it is the reference that decides.

All Longines families → · Why the size changes inside a family →