Band Strap For Samsung Galaxy Watch 4 40 44mm Classic 46 42mm Wrist Bracelet | eBay
Best Buy: Platinum™ Leather Watch Band for Samsung Galaxy Watch (46 mm) and Galaxy Watch3 (45 mm) Black PT-SGWA22BS
Amazon.com: Spigen Modern Fit Designed For Samsung Galaxy Watch 6/5/4 44/40mm, Classic 6 47/43mm, 5 Pro 45mm, 4 Classic 46/42mm, 3 41mm, Active 1&2 Band - Rose Gold : Cell Phones & Accessories