Since producing its first solar watch in 1977, Seiko has been transforming timekeeping with innovative technology—this watch is no exception. The SNE329 Sport Solar-Powered Watch has a sleek stainless steel case, an easily adjustable navy blue nylon-calf band with buckle closure, and an energy-efficient 10 month power reserve. It’s constructed with a durable crystal that protects the matching blue dial which features a coin-edge bezel and day/date calendar. Because the watch is water-resistant to 330 feet, it can be worn swimming laps or snorkeling. This analog-digital combined Casio watch has a solar-recharging system that converts even the faintest light from fluorescent lamps into ample energy. It has an unmatched range of features including a 48-city world time, five alarms, a stopwatch and dual countdown timers for sport outings. It also has a date display that can be set to English, Portuguese, Spanish, French, German, or Italian. With LED light afterglow and neo-brite luminous hands and markers, you can keep time in the dark. The Citizen Eco-Drive watch is the world’s first light-powered quartz mechanism. On just a single full charge it can run for over six months—even if stored in the dark—and recharges continuously in any light so you never need a battery replacement. The stainless steel case features unidirectional bezel, a blue dial, date window at four o’clock and gleaming hands and markers. The watches’ molded polyurethane band is super flexible, durable, and comfortable to wear. Plus its water resistant design can withstand showering, swimming, and even Scuba diving. We couldn’t resist adding another top notch Citizen watch to the list. This model is simplistic yet chic, with a stainless steel case, white dial, and leather blush pink strap. It can handle quick dips in the ocean and splashes at the pool. And if you’re looking for a more classic, understated look, a stainless steel bracelet watch style is also available.