Suunto Core - Care and support - Replacing battery
Black SUUNTO VECTOR HR Watch SS015301000 Heart Rate Monitor, Manual w battery | eBay
How to Change a Suunto Core Watch Battery - DIY - YouTube
Amazon.com: Fintie Watch Band Compatible with Suunto Core, Premium Woven Nylon Replacement Sport Strap with Metal Buckle Compatible with Suunto Core Smart Watch, Black : Cell Phones & Accessories