The Citizen Eco-Drive Promaster Diver in Black and Blue is proof that a dive watch can be fun and functional.

With Eco-Drive technology, it is powered by light and never needs a battery, so you'll never need to open your case back or compromise your dive again.

This timepiece features a stainless steel case and bracelet with black and blue bezel and matching black dial, one-way rotating elapsed time, 1/5th-second chronograph, 12/24-hour time, date and water-resistant to 200 metres.