Amazon.com: teamplayer Galaxy Watch Back Lens Glass with Tape Replacement for Samsung Galaxy Watch 46mm SM-R800 R805 Rear Lens Glass for Galaxy Watch 42mm SM-R810 R815 (NOT Included Back Cover) : Cell
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
Compatible Samsung Galaxy Watch 46mm Case 2018 ( for SM-R805 and SM-R800 and Gear S3 Frontier SM-R760 ) , (2 Packs) Soft TPU Smart Shockproof Case Cover Bumper Protector(Black) - Walmart.com