Seiko Men's Coutura Kinetic Perpetual Watch #SNP007  Product Description: Powered by your body movement. No battery changes. When not in use, memory will keep time up to 4 yrs. With a few shakes, will automatically reset to correct time. Once set, calendar adjusts for odd/even months, including leap years up to Feb 2100Amazon.com Product Description: Dress to impress with Seiko's Kinetic Coutura watch. This chic, masculine timepiece features a stainless steel case, stainless steel bezel with subtle gear detailing, and a stainless steel link bracelet that secures to the wrist with a fold-over pushbutton clasp. A strong sapphire crystal protects the black watch dial, which features stainless steel hour indexes, subtle minute indexes, and green-and-silver-tone hands. A stylish month sub-dial rests at six o'clock, an eye-catching date calendar sits below 12 o'clock, and another sub-dial between three and four o'clock marks the 24-hour clock. This impressive timepiece is powered by kinetic movement, and is water resistant to 330 feet.