Holders for Balance Screws 0.90 mm Omega® 13 OM 75 (Westminster chime)

75 (Westminster chime)

Generic (not original) jewel for oscillating weight (lower)

5 1/2" (14cm) Warding Needle File cut 5 Swiss Pattern is a warding file

25 x 700 (27 1/2")

Generic (not genuine) Flat Gaskets

Holders for Balance Screws 0.90 mm Omega® 13 OM 75 (Westminster chime)Holders for Balance Screws 0. 90 mm is a specialized slide locking pin vise specifically designed to hold balance screws. Many of the older watches were designed with balance screws, which need adjustment to ensure an even oscillation of the balance wheel. This holder is designed to hold a balance screw with a head diameter of 0. 90 mm. Total length of this pin vise is 115 mm.