What are some accessories that make you look classy (for men and women)?

For men, a nice watch, a good quality belt, and a pair of sunglasses can all make you look classy. A nice leather briefcase or messenger bag also adds to the look. For women, some nice jewelry like earrings or a necklace can dress up an outfit. A scarf or shawl is also an accessory that can add classiness to an outfit. Of course, the key is to not over-accessorize; too much bling can take away from the overall look.