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Amazon.com : SUUNTO, Service Kit Vector/X-Lander: Battery Cap and o-Ring for Vector, Vector HR, X-Lander, Altimax, Advizor, S-Lander, Yachtsman, Regatta and Mariner, SS023327000 : Sports & Outdoors
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Suunto core series all steel battery cover waterproof ring -- Battery kit includes a battery lid and O-ring
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