Citizen Promaster Diver Chronograph

It uses Citizen Eco-Drive, so the watch charges from light instead of needing routine battery swaps. A fully charged Eco-Drive chronograph can usually sit for months in the dark, depending on the exact movement.

Promaster Diver models are built around dive-watch practicality, and many are rated to 200 meters of water resistance. The rotating dive bezel is for elapsed time, while the chronograph is better treated as a surface timing tool unless the manual says the pushers are safe underwater.

The chronograph adds stopwatch timing for runs, workouts, cooking, or field use while keeping the bold Promaster case and high-legibility dial. The tradeoff is a busier dial than a three-hand Citizen Promaster diver.

It suits someone who wants a rugged daily watch with dive-watch styling, solar charging, and practical timing functions. Citizen's Promaster line is aimed at tool-watch users, not dress-watch collectors.