Zenith balance staff 18-28-3P old model (height 468) / 18"1/2 NV / 19" Bas / DCN 42

Zenith balance staff / axe de balancier

New old stock / Neuf de stock

Very rare model for following calibers :

18-28 3P old model (not for 18-28 3P new model)

18"'1/2 NV

19"' Bas

Height 468 (not for usual 18-28 series , which have a height of 463)

Dimensions : height 468 / half-height 230 / balance arbor 123 / hairspring collet 74 / roller 54

DCN 42 (Different from Ronda code 2610 or Flume U230)