About Us


Welcome to Cas-Ker!

We are a full line service distributor to professional jewelers and watchmakers.

Our inventory may be the world's largest selection of horological products including watch parts, batteries, jewelers' and watchmakers' tools and supplies, findings, watch bands, gift boxes, and more. We're your one-stop-shop for everything from top-of-the-line precision tools to vintage watch parts that can't be found anywhere else. Trust Cas-Ker to help make your work more efficient and profitable.

The Cas-Ker Company was started in 1927 as the American and Swiss Watch and Supply Company. In 1937 the name was changed to its present form. The Cassedy brothers who now own and operate the company represent the third generation of family operation. Cas-Ker has active accounts in all 50 States, Canada and Puerto Rico, and has been serving jewelers and watchmakers for 90 years.

Cas-Ker Co. offers an unsurpassed selection of quality watchmaking and jewelers products from the USA, Switzerland, Japan, France, and Germany. Mechanical and quartz movements, case parts, crystals, crowns, stems and clasps are easy to find on our website or by calling our helpful customer service department.

To order Watch Parts not found on our website please click here or Call 1-800-487-0408 or Fax 1-800-487-5848.

Phones open Monday - Thursday 8:30AM - 5:30PM Eastern, 6:00PM Central, 5:00PM Mountain, 4:00PM Pacific (Friday all time zones 8AM - 5PM Eastern). Cincinnati counter & Will Call Open Monday - Friday 8:30AM - 3:00PM.

Our Guarantee

You can buy from Cas-Ker with confidence, knowing that if you are not 100% satisfied with your order when it arrives, you may return it for a prompt exchange or refund.


Convenient ways to contact Cas-Ker

Call Toll Free: 1.800.487.0408

Fax 24 Hours Toll Free: 1.800.487.5848

Mail Your Order:
PO BOX 31167
CINCINNATI OH 45231-0167

Order Online:



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Curious about our company history? Read our story here.

Looking for our product catalogs? Click here.

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Cas-Ker Co.
2550 Civic Center Drive | Cincinnati, OH 45231 | CALL 800-487-0408 | FAX 800-487-5848 | Cincinnati 513-674-7700