(1) The material of the watch strap buckle is of poor quality, the material is thin, the strength is poor, and it is prone to deformation.

(2) The closing and opening techniques during use were not good. Pulling and dragging were forced, causing the clasp to deform.

(3) Incorrect maintenance and correction of the watch strap buckle.

It is recommended that when fastening the watch strap, you use your thumb and index finger to pinch the clasp. When opening it, you should apply force with your thumbnail perpendicular to the direction of the strap clasp to open it. (Excluding those with locks) A loose and closed watch strap buckle can easily cause the strap to come off by itself, which will affect the safety of wearing the watch. Therefore, it is necessary to check it regularly. If the strap buckle is too loose, it must be corrected. If you do not have professional repair experience, do not move it yourself. It is better to send it to a watch store. Metal watch straps can be classified into solid and hollow ones. The straps of more high-end watches are all made of solid ones, while hollow straps are more prone to deformation. However, the pins or screws connecting the links of a solid watch strap are more likely to come out or unbuckle. This also needs to be checked regularly while wearing the watch. Only by properly maintaining your beloved watch and replacing its parts can you showcase its exquisite craftsmanship and aesthetic features.