1, you can stick it yourself with 502 glue, but be careful not to spread the glue elsewhere.

2. You can take the fallen diamonds to a relatively professional place for inlaying.

If you can't find it yourself, you can use the following methods:

1, go to the counter to buy a watch and get one, and ask the store to assist in inlay.

2. Go to a nearby jewelry store and set it with an identical or similar diamond.

note:

If you really don't deserve it, or don't like it, you can only give up this watch, pay attention to it later, and find some watches with better quality to choose and buy.