Details
Here is Micro-Stella balance regulating wrench Ref. 2019 that is used to adjust the rate of a Rolex caliber 2130, 3035, 3055, 3135, 3155 and similar. These precision watchmaker tools are filled with oil which allows the balance weight to float, providing a great accuracy in reading the graduations located on the index scale. Adjustments can be made either with the movement inside or outside of the watch case. This watchmaker's tool is made exclusively for regulating Rolex watch movements.