Zenith balance staff 10"'1/2 cal. 2 (ht. 332) / Ronda 4814

Zenith balance staff / axe de balancier

Neuf de stock / New old stock

Cal : 2

Size 10"'1/2

Ronda code 4814

height 332 / half-height 157 / balance arbor 75 / roller 45 / hairspring collet 45