Citizen Promaster Chronograph Eco-Drive CA0820-50X 200M Green Dial Watch

Marine chronograph for divers and daily wear

This ISO-compliant diver pairs a 45 mm stainless steel case with a matching bracelet and a unidirectional green bezel. Eco-Drive Caliber B612 converts any light source into power, removing the need for battery changes. Water resistance reaches 200 m for professional underwater use. Luminous hands and index markers ensure legibility in low light.

Replaces battery-powered quartz divers

The jump is worth it when you need a single timepiece that handles saturated diving, office wear and weekend impact without a service interval for a cell swap. Solar charging keeps the movement running through storage periods. A 1/5-second chronograph measuring up to 60 minutes and a 12/24-hour sub-dial add genuine utility over basic three-hand models. Screw-down case back and crown protect the movement at depth.

Sustained performance under continuous load

Mineral crystal resists repeated impacts and pressure cycles during daily diving rotations. Solar cell and capacitor maintain stable amplitude during weeks of wrist time or safe storage. Unidirectional bezel holds position through salt-water exposure and accidental knocks. Deployment clasp with integrated push buttons stays secure during prolonged activity. Chronograph and sub-dial functions operate reliably across the full 200 m rating.