Optical Screw Assortments
Cas-Ker is your complete source for a variety of parts for watch and jewelry repair and design. We have all the parts and tools you need to do the work you love.
We offer the best service in the watch material business. We carry all available brands of watch material including crystals. Our selection of Seiko and Pulsar parts and crystals is unsurpassed. For fast and efficient service, send your next parts order to Cas-Ker, where material is our main business.