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 2100
Amazon.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.
Kinetic: A powerhouse in technological innovation
Like mechanical and quartz, Kinetic is a platform. Over the past 20 years, SEIKO has created on this platform a suite of Kinetic movements, each bringing unique features to the consumer.
It was at the 1986 Basel Fair that SEIKO unveiled its first Kinetic prototype. Introduced under the trial name of 'AGM', it was the first watch in the world to convert kinetic movement into electrical energy. It was the first step in a development that, 20 years later, has made Kinetic synonymous with environmental friendliness, high performance and long-lasting convenience to a generation of users worldwide. From the launch in 1988 of the first commercially available watch (then under the new name AGS) until today, over eight million Kinetic watches have been sold (as of 2007).
In 1998, Kinetic Auto Relay was released, extending the 'at-rest' operating period of the watch to a remarkable 4 years. 1999 saw the launch of the Ultimate Kinetic Chronograph, a masterpiece which fused the very best of SEIKO's mechanical and electronic watch making skills, and in 2003 another Kinetic Chronograph was launched. At Baselworld 2005, the Kinetic Perpetual made its first appearance, combining Kinetic convenience and longevity with a perpetual calendar, correct to the year 2100. In 2007, SEIKO's emotional technology Kinetic Direct Drive is introduced.