Solution to stainless steel mesh band discoloration
My stainless mesh band discolored on the inside after only two months of wear. The solution is cleaning with silver polish. I know that seems obvious, but it didn't occur to me right away. Remove the watch first as you will need to thoroughly rinse the polish out of the mesh and let it dry. There are clothes with polish embedded, but I used regular household silver polish, a sponge and warm water.
Apple Watch 38mm, watchOS 1.0.1, Stainless with mesh band