Replacement Strap for Polar M430 GPS Running Watch | StrapsCo
Polar - Have you given the Polar M430's Fitness Test with wrist-based heart rate a try yet? It tests your fitness level anytime, anywhere—no straps attached 😉 | Facebook
Amazon.com : QGHXO Band for Polar M400/M430, Soft Adjustable Silicone Replacement Wrist Watch Band for Polar M400/M430 Watch (Orange) : Sports & Outdoors
Sport Replacement Watch Band for Silicone Bracelet Strap Polar M400 M430 GPS | eBay