Citizen Promaster Dive Eco-Drive 2026

The Promaster Dive is Citizen's answer to a watch that works as hard underwater as it does on dry land, pairing genuine ISO dive-watch performance with a case built for daily rotation. It runs on Citizen's Eco-Drive system, which draws power from any light source — indoors or out — so there's never a battery to track down or replace.

The 40.6mm case is finished in silver-tone stainless steel and paired with a black unidirectional bezel for tracking elapsed dive time. A matte white dial keeps legibility sharp, with a date window sitting at 3 o'clock. Up top, an anti-reflective sapphire crystal resists impact and scratching while cutting glare. It's fitted to a polyurethane strap with a buckle closure, rated to 200m of water resistance, and comes in at a wearable 84 grams.

Inside is the E118 Eco-Drive caliber, a light-powered movement that stores energy continuously rather than depleting like a standard battery-driven quartz movement. It drives a straightforward 3-hand-with-date layout, keeping the focus on dive-ready function over added complications.