Just registered my SS Galaxy Watch SM-R800 that I have had for 5 years. Model and Serial in the watch matched what is on their website and the registration resolved it to
Amazon.com: Samsung Galaxy Watch (46mm) Silver (Bluetooth), SM-R800 – International Version RENEWED : Cell Phones & Accessories
SM-R800 | SM-R800NZSATGY | HK_EN
Smart Watch Wireless Charger Charging Base for Samsung Galaxy Watch 42mm 46mm SM-R800 R805 R810 R815 - Walmart.com