Washing and cleaning your wristwatch is the most important step to keeping it like new.  Watch Spray's formula is pH-balanced, water-based, and does not include Naphtha, solvents, or alkaline chemicals.  It's safe for all metals (316L/904L, platinum, gold, titanium), as well as crystals (mineral/acrylic/sapphire), rubber and plastic.  Earth-friendly.  Size 2oz.  Made in the USA.