![HOROLOVAR 400-Day Beat-Setting Tool (10444090511)](http://perrinwatchparts.com/cdn/shop/products/24_main.565-300_200x200.jpg?v=1595350248)
HOROLOVAR 400-Day Beat-Setting Tool With this tool, the final and most important operation in the 400-Day Clock Repair - putting the pendulum in beat - becomes simple, quick accurate and permanent. This precision tool is designed with the clock repairman in mind. Tool is supplied with a set of instructions.