![Rolex balance screw regulator micro-stella](http://watchmakershop.com/cdn/shop/products/Rolexbalancescrewregulatormicro-stella_{width}x.jpg?v=1590432340)
Ideal for fine adjustment of the star-shaped balance screw in watches without regulator pin, e.g. Rolex. An adjuster moment moving free in the tool capsule permits precise regulation by using markings. Important: opposing balance screws must always be adjusted by exactly the same number of markings + / -.