This mini o-ring watch crown seal assortment is a great gasket kit for watchmakers and others who work on watch cases with Japanese style crowns. These small round gaskets are made of solid tube rubber to create an airtight seal.
- Assortment contains 17 different o-ring sizes
- Note: Diameter measured is the interior diameter of the gasket
- Kit has a total of 170 pieces
- Contains 10 pieces of each size (thickness x diameter combinations)
- Made to fit Japanese style crowns
- Maintain airtight seal
- Mini o-rings
- Made of rubber
- Comes in a handy plastic compartment box
- Refills are available in packages of 3 pieces
*Sizes are approximate as measurements may vary slightly by gauge.