Tissot 31.1, 28.1 Balance Complete with Incabloc (Shock Proof) – Part 721 – NOS

Complete Incabloc shock-protected balance, part 721, for Tissot 31.1, 28.1. NOS in original packaging, also fits Tissot 28.5-1 and 31-1.

1x for Tissot 31.1 ref. # 721

INCABLOC (shockproof)

Balance complete

Also fits Tissot 28.1, 28.5-1, 28.5-21, 28.21, 31-1

Still in original packaging

Balance with flat hairspring