World of Watches takes up to 91% off a selection of men's and women's watches during its Back-to-School Sale. (Discounted prices are as marked.) Plus, all orders qualify for free shipping. With prices starting at $25.99, that's among the best discounts we've seen from World of Watches in recent months, yielding several price lows. Choose from brands such as PUMA, Casio, Invicta, Timex, Lucien Piccard, and more. Notables: