Clockmaker's Tool Set by DELIAWINTERFEL Product DescriptionThis watchmaker tool set provides all essential utilities for watch lovers Whether changing a strap, the shortening of the metal bracelet, fast and trouble-free battery replacement, the fine adjustment of the automatic movement - no tool is missing Many important parts such as: spring bars in various sizes for the bracelet, O-ring seals in various diameters for the floor and watch battery clamps with screws are delivered with it Clockmaker's Tool Set