Tracking time by increment is easy with the Chronograph feature

three chronograph subdials

and exhibition case back that capture the bold spirit of an era that changed everything

5mm Black PVD Stainless Steel Case - Sapphire Crystal Glass - Solid Caseback - Push/Pull Crown - Unidirectional Bezel

Citizen Men's Watch Eco-Drive Professional Diver Green Size A_48 Tracking time by increment isThe Citizen Eco Drive Professional Diver BJ8057 17X is a bold and robust dive watch, engineered for extreme performance. Featuring Citizens Eco Drive technology, this powerful tool watch is fuelled by any light source and never needs a battery, making it a true companion for adventurers and professional divers alike. Its 48mm gun metal PVD stainless steel case is built for durability, paired with a unidirectional bezel, screw down crown, and 300 metre