These easy-to-use kits helps you replace your Suunto battery in a few seconds with no tools other than a coin! You don"t even have to take your Suunto watch to a watch store to get the battery replaced! The 6 Series kit includes battery, O-ring seal, and a new lid. The 6 Series is made for models: Vector, Advisor, X-lander, S-lander, Altimax, Yachtsman, Mariner, and Regatta.