Men's luxury timepieces with technical advancements and a sporty style 1/20 second chronograph measures up to 60 minutes, perpetual calendar, dual time (second time zone), 12/24 hour time, alarm, and date. Silver-Tone Super Titanium Case Mineral Crystal 100 Meters Water Resistant and 5 Year Limited Warranty Light-Powered Eco-Drive: Converts any light, whether natural or artificial, into energy. Energy is stored in a permanently rechargeable power cell. The watch recharges continuously in any light to run forever, with no battery changes required, ever