JY8074-11X Calibre No:U680 Signal Reception:Global Radio-Controlled Accuracy:±15 sec / month (Non reception) Case:Stainless Steel / Gray Band:Nylon Strap / Beige Glass:Sapphire Glass Case Size:45.4mm Thickness:13.9mm Dial:Green Water Resistant:200M Movement:Eco-Drive Max run time from full charge:Approx. 6 months in normal use / Approx. 3.5 years in power save mode Main Features:Analog / Digital Time display World Time in 43 cities Alarm, Timer, Dual Time Chronograph, LED lights Perpetual Calendar Power saving function