A really nice watch has been a classic graduation gift for generations -- and what could be more sentimental and eco-friendly than passing on one from generation to generation?
If you don't have any heirlooms lying around, then look for a timepiece at your local vintage stores and antique shops.
There are also plenty of options on vintage websites and eBay: This 1930s unisex Rolex in a rare octagon shape is just one of the stunning options we found (keep in mind it's best to go through a verified seller in order to be sure your item's history is true). (Second Time Around Watch Company Vintage Rolex, $2,700)
Photo: Second Time Around Watch Company