Ecologically friendly, light powered Eco-Drive Caliber B877 Japanese-quartz movement; charges in natural sunlight or indoor lightMax power reserve : 180 days; low charge warning : 3 days; Quick start ability; charge time from stop state to max charge : Incandescent Light - 53 hrs, Outdoors, Cloudy (10,000 Lux) - 17 hrs, Outdoors, Sunny (100,000 Lux) - 6 hrsDurable, hardened non-reflective mineral crystal; performs flight calculations with Pilot's slide rule inner bezel ring operated by crown at 8 o'clockLarge luminous hands and hour and minute markers for easy readability; dual-time function; date feature at three o'clockWater-resistant to 660 feet (200 M)

Ecologically friendly, light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor lightStylish alligator pattern leather strap with buckle closureDay and date calendar featureSolid stainless steel case constructionWater-resistant to 99 feet (30 M)

Ecologically friendly, light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor lightDurable, hardened mineral crystalCase diameter : 36 mmGold-tone-stainless-steel case; genuine brown leather strap with buckle; black dial; day and date functionWater-resistant to 330 feet (100 M)

Ecologically friendly, light powered Eco-Drive Caliber E000 Japanese-quartz movement; charges in natural sunlight or indoor lightMax power reserve : 180 days; low charge warning : 7 days; Quick start ability; charge time from stop state to max charge : Incandescent Light - 72 hrs, Outdoors, Cloudy (10,000 Lux) - 22 hrs, Outdoors, Sunny (100,000 Lux) - 11 hrsDurable, hardened mineral crystal; case diameter : 26 mmTwo-tone stainless steel case; white dial; day-and-date functionsWater-resistant to 330 feet (100 M)