Fastening clamp of mechanical watch balance bridge

The utility model discloses a fastening clamp of a mechanical watch balance bridge. The fastening clamp comprises a gauge block, a balance bridge positioning column, a pressing plate and a fastening device. The gauge block is formed with a mounting hole which is matched with the balance bridge positioning column which is installed in a hole of the gauge hole. The balance bridge is installed on the balance bridge positioning column. The pressing plate presses the balance bridge. The pressing plate and the balance bridge are fixed on the gauge block by the fastening device. The fastening clamp has the advantages that since the balance bridge is effectively fixed on the gauge block, the balance bridge can be accurately adjusted and measured, an adjustment size of the balance bridge is ensured, the measurement efficiency and size consistency are effectively raised, a quantitative basis is provided, the qualification of an axial gap between a balance wheel and a balance bridge shock absorber is ensured, and the ti