Tool for setting the balance screws, square shape.
For calibres OM 2500 B and similar.
Horotec MSA03.671 Key For Setting The Balances Square Shape Key For Co-Axial Omega Movements.
Balance screw tool for all Omega co axial calibres including calibres: 2300A, 2500A, 2500B, 2500C, 2610A, 2627A, 2628B, 3301A, 3303A, 3313B, 3603A and 3890A.