KWC 331-355 (ATC)
KWC (WRA) chrome plastic watch crystals have a metal tension ring. These crystals are installed using a crystal press.
These crystals are used on older mechanical and automatic watches that are waterproof. The inside is slightly wider with a chrome rim. These crystals often clamp the movement to the rim. There is no other way to install these crystals properly than with a crystal press. You can use glue, but this will compromise the water resistance of a watch. We strongly advise against this.
The crystals are available in sizes from 14.0 mm to 35.5 mm, increasing in 0.1 mm increments.
Order 6 or more plastic watch crystals (assorted) and receive a 30% discount. Code 90005.
