72 O-ring Rubber Gaskets For Watch Repair This is a new set of 72 assorted o-ring rubber gaskets Great for watch repair These gaskets form a watertight seal at the joints where the crystal, the case back and the crown meets the watch case Sizes will vary per pack per order 7 Precision Screwdrivers Great For Watch, Electronic & Eyeglass Repair This is a new set of 7 precision screwdrivers. Great for watch, eyeglass and electrical repair. These screwdrivers are nickel-plated to prevent rust. Has reversible, double-ended blades and threaded ferrules for easy replacement. The tips are flat and measure: 0.58, 0.73, 0.78, 0.88, 0.95, 1.20 and 1.27 mm Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.