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
Galaxy Watch Active (40mm), Rose Gold (Bluetooth) Wearables - SM-R500NZDAXAR | Samsung US
BEST SMART WATCH | GALAXY SMART WATCH SMR-800 REVIEW | SAMSUNG GALAXY WATCH FEATURES - YouTube