When working with large wristwatches, having the right tool is essential – and the JAXA case opener from Bergeon is a reliable choice. Specifically designed for opening screw-back cases, it combines functionality with exceptional comfort.

Its ergonomic design ensures a secure and comfortable grip, allowing for precise handling even during demanding tasks. With three adjustable contact points and four interchangeable inserts, the tool fits most types of case backs.

The JAXA opener covers a wide range and can open case backs with diameters from 18 mm to 62 mm – ideal for both classic and modern watches.

A high-quality tool from Swiss manufacturer Bergeon – a must-have on any professional watchmaker’s bench.