Longines mainspring 5LN 5LNS 8M 8.68 ABC

1 Longines 5LN 5LNS 8M and 8.68 ABC mainspring / Ressort de barillet / Zugfeder / Aufzugfeder

Not for 8.68N nor 8.68Z

Bride à ailettes / Double brace

New old stock / neuf de stock