It's hard to argue against the value of Swatch's Sistem51 line. If you're not familiar, the watches are powered by an automatic movement with an incredible 90-hour power reserve. And not only that, they're incredibly affordable too. The latest model is a sleek small seconds version called the Petite Seconde, which is actually the first Sistem51 to have a small seconds subdial. The case size is 42mm and it comes on a leather strap in two colorways: black and blue.