Suunto Wrist-Top Computer Watch Replacement Battery Kit with plastic cover(Vector, Advizor, X-Lander, S-Lander, Altimax, Yachtsman, Mariner, Regatta) Models: Vector, Vector HR, X-Lander, Altimax, Advizor, S-Lander, Yachtsman, Regatta and Mariner Product Number: SS0S4700000