Premium Rubber Watch Crown - High Elasticity, Waterproof, Durable for Watch Repair & DIY (Multiple Sizes) - Perfect for Watchmakers, Jewelers & Hobbyists

Feature:1. Superior ing waterproof. A variety of specifications to choose from.2. Suitable for different sizes of watches, can be used in a variety of parts of the watch.3. Rubber gasket set, mounted on the back cover or watch crown, prevents water from ente the watch.4. Suitable for watchmakers and watch repai workers to use.5. Made of quality rubber material, good ing effect and high elastic.Spec:Condition: 100% Brand NewItem Type: Watch Crown OMaterial: Rubber O (Unit MM) Thickness: 0.6Diameter: 12mm / 0.47in, 13mm / 0.51in, 14mm / 0.55in, 15mm / 0.59in, 16mm / 0.63in, 17mm / 0.67in, 18mm / 0.71in, 19mm / 0.75in, 20mm / 0.79in, 21mm / 0.83in, 22mm / 0.87in, 23mm / 0.91in, 24mm / 0.94in, 25mm / 0.98in, 26mm / 1.02in, 27mm / 1.06in, 28mm / 1.1in, 29mm / 1.14in, 30mm / 1.18inWatch Crown Waterproof s (MM) Inner Diameter x Outer Diameter x Thickness: 1.4 x 0.6 x 0.41.5 x 0.6 x 0.71.6 x 0.6 x 0.51.7 x 0.7 x 0.51.8 x 0.8 x 0.51.9 x 0.8 x 0.72.4 x 1.4 x 0.52.8 x 1.75 x 0.533.2 x 1.8 x 0.73.6 x 1.7 x 0.8Package List:950 x O 100 x Watch Crown Waterproof s