CITIZEN PROMASTER Eco-Drive BN0157-11X

Citizen's proprietary solar-powered Eco-Drive technology converts sunlight or faint indoor light into electricity to keep your watch running.

Once fully charged, the watch will continue to run for long periods of time, even in the dark, eliminating the need for periodic battery changes.

Power Source
Solar-Powered Eco-Drive
Accuracy
±15 seconds/month
Power Run Time
Solar-Powered for 6 Months
Weight
94g
Thickness
11.5mm
Case Size
Width
44.0mm
Case Material
Stainless Steel
Case Surface Treatment
Gray Plating
Band Material/Type
Urethane
Buckle
Band Width
20.0mm
Band Adjustable Size
140-210mm
Crystal
Water Resistance
200m Diving Water Resistance
Magnetic Resistance
Grade 1
Design Features
Unidirectional Rotating Bezel
Screw Lock Crown
Luminous (Hands and Indices)
Features
Insufficient Charge Warning
Overcharge Prevention
Quick Start
Approximately 6 Months of Operation on a Full Charge
Date Display
Quick Date Correction
Shock Detection