The opening diameter is 36.5mm, suitable for a variety of medium and large case backs, meeting common maintenance needs.
Made of metal material, it is pressure-resistant and wear-resistant, and is not easy to deform or damage after long-term use.
The head of the watch opener has a precise tooth design, which is firmly engaged with the back cover to avoid sliding and scratching the back of the watch, improving safety.
It can be used for battery replacement, movement inspection, daily cleaning and other operations. It is a must-have tool for watch repairers and watch owners.