Ecologically friendly, light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor lightBlack durable nylon strapDate calendar featureLuminous hands and hour/minute markers; compact brushed stainless steel caseWater-resistant to 660 feet (200 M)

Ecologically friendly, light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor lightDurable military green nylon strapDate calendar featureLuminous hands and hour/minute markers; compact brushed stainless steel case with polished bezelWater-resistant to 330 feet (100 M)

Ecologically friendly, light powered Eco-Drive Caliber B741 Japanese-quartz movement; charges in natural sunlight or indoor lightMax power reserve : 60 days; low charge warning : two day; quick start ability; charge time from stop state to max chargeDurable, hardened mineral crystal; case diameter : 48 mm; depth display up to 125 feet; maximum depth memory; unidirectional rotating time-elapsed bezelStainless-steel case; black dial; 50-minute chronograph function; 12-24 hour time; date function at three o'clock; screw-back case and screw-down crownWater-resistant to 660 feet (200 M)

Ecologically friendly, light powered Eco-Drive Caliber E812 Japanese-quartz movement; charges in natural sunlight or indoor lightMax power reserve : 120 - 270 days with Power Save; low charge warning : 5 days; charge time from stop state to max charge : Incandescent Light - 43 hrs, Outdoors, Cloudy (10,000 Lux) - 12 hrs, Outdoors, Sunny (100,000 Lux) - 4 hrsLeather strap; perpetual calendarChronograph functions with alarm, 24-hour, and 1/20th second sub dials; unidirectional rotating bezel; alarm and date functions; tachymeter inner chapter ringWater-resistant to 660 feet (200 M)