Wash your hands! Oil and dirt on your fingers can get inside the watch, and also make it harder to work with the adhesive we'll be using.

To prepare for resealing the watch, clean the sealing surfaces thoroughly.

I used isopropyl alcohol on cotton swabs to clean the bezel and watch case sealing surfaces. All old gasket material should be removed.

It's easier to clean the case sealing surface with the display removed, so if you're removing the display during your repair, clean it then!