Amazon.com: Compatible for Samsung Gear S3 Frontier/Classic Case Bezel Cover, Metal Bezel + TPU Protector Bumper Case, Also Fit for 2018 Released Galaxy Watch 46mm/NOT for 2021 Galaxy Watch 4 Classic 46mm :
Samsung Gear S3 Frontier Accessories
Leather Strap for Watch Samsung Gear S3 Frontier or Classic - Etsy | Samsung gear s3 frontier, Leather watch bands, Leather band