Omega balance staff 28sc 360 370 regular / original

1 Omega balance staff / 1 axe de balancier Omega

Neuf de stock / New old stock

Original Omega part 1321

Same balance staff for all following calibers : 28sc , 360 and 370  (not for 361 , 371, 372 which are incabloc)

Height 262 / Half-height 135 / Balance arbor 90 / Hairspring collet 49 / Roller 36