Longines balance staff 17.89M 18.89M 18.90M

1 Longines balance staff / 1 axe de balancier Longines

Neuf de stock / New old stock

Le prix est pour 1 axe / The price is for 1 staff

Même axe pour tous les calibres suivants / same balance staff for all following calibers :

17.89M 18.89M 18.90M (only for model "M", not for 17.89, 18.89, 18.90, not for model "ABC", not for model "N")

Choose your version in the list on top of this offer (to my opinion the difference is not visible, it is only the height of the balance arbor, called "rivure" in french)

riv. height 0.35mm / Ronda code 1603 (height 315)

Dimensions : height 315 / half-height 170 / balance arbor 130 / roller 55 / hairspring collet 80

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riv. height 0.40mm / Ronda code 915 (height 316)

Dimensions : height 316 / half-height 170 / balance arbor 130 / roller 56 / hairspring collet 80