Try Anti-Tarnish Strips by 3M...
It works by absorbing the sulphur in the air, best if you can keep your watch and strip in an air tight ziplog bag. A jeweler's cloth will also remove the tarnish and keep the watch looks nice and shiny. Lastly, yellow gold should not tarnish at all. Rose...
Oxidation on gold
Reasonably pure gold (18k & up) does not naturally tarnish from oxidation in the way that sterling silver does. However the problem can arise, particularly with cast items that often suffer from micro porosity. Items made traditionally by rolling and pull...
