The incredibly thin Stiletto series is the flagship of the Citizen Eco-Drive line - Sleek, thin and refined and no batteries to change ever. . . . . Solid Stainless Steel Tonneau Shape Case and Bracelet with Gold-Tone Plating . . Subtle sunburst pattern on dial is reminiscent of enameling on high-end Swiss timepieces . . Deployment Clasp with Push Button is Easy to Put On and Take Off . . Sapphire Crystal is Virtually Scratch-Proof . . Water Resistant to 30 Meters . . Low-Charge Indicator and Time-Reset Advisory - the second hand will move in 2 second jumps to indicate that it needs a charge . . Never Needs a Battery - Charges in sunlight or indoors as you wear it. . . When Fully Charged, it will run for 180 days without additional exposure to light (180 Day Power Reserve) . . Approximate case width 32 mm (1 1/4 inches) not including setting crown . .