How to Use a Jaxa Wrench
The Swiss-made Jaxa watch wrench is specifically designed to make it easier to open the back of watch cases for larger watches, including waterproof watches and water-resistant watches. The wrench opens the watch without causing scratching or other damages. The wrench is equipped with an ergonomic design that provides a firm, yet comfortable grip.
The Jaxa wrench will open diameters from 18mm to 62mm and is supplied with four different chucks that give you a wider range of options: three for polygonal cases, three for slotted cases, three for cases with holes and three for grooved cases.
- Remove the watchstrap or band to prevent it get in your way and making working on the watch difficult. This may require pin removers.
- Place the three teeth to fit the three slots and adjust to create a triangle. Be certain that the three teeth have equal base length.
- With the watch in your palm, face down, use your other hand to hold the Jaxa wrench to firmly but carefully press it onto the watchcase back.
- Turn the handle to close the three chucks, and then firmly turn the Jaxa wrench counter-clockwise to open the watch back.
- Loosen the Jaxa wrench before you lift the back off the watch to avoid misshaping the case back.
- It is important that you do not force the Jaxa wrench if the watch back is tight and does not screw off. If this is the case, take the watch to a watch specialist or jeweler to avoid causing damage to your watch.