Durable, hardened non-reflective mineral crystal case diameter: 40mm Retrograde perpetual calendar function alarm function dual-time function with 24-hour sub dial.Max power reserve: 180 days low charge warning: 3 days charge time from stop state to max charge., light powered Eco-Drive Caliber E870 Japanese-quartz movement charges in natural sunlight or indoor light.Other features include water resistance to 330 feet (100 meters), an alarm, and a scratch-resistant, non-reflective mineral crystal. The silver stainless steel bracelet band is composed of small brushed links, and is joined by a fold-over clasp with double push button safety. It has a blue dial background with three subdials for 24-hour, day, and month as well as date window at 4 o'clock. The watch also has a perpetual calendar that automatically adjusts for odd and even months and leap years through 2100. With regular exposure to light, the Eco-Drive recharges itself for a lifetime of use. It's powered by Citizen's unique Eco-Drive, which absorbs sunlight as well as any artificial light through the crystal and dial to recharge the watch continuously.

The Citizen BL8000-54L stainless steel men's watch is loaded with style and time-keeping features.

Citizen eco drive calibre 8700 two tone