Omega mainspring 1010 1011 1012 1020 1021 1022 / part 1208

Omega 1010 mainspring / Ressort de barillet

Same mainspring for all following calibers :

Omega  1010 1011 1012 1020 1021 1022 (only for these 6 calibers)

Part 1208

Original Omega part

New old stock / neuf de stock