All Apple Watch models can now be outfitted with genuine leather straps. Watch Bands made from genuine leather for the Apple Watch 9, Apple Watch Ultra 2, Apple Watch Ultra, Apple Watch 8, Apple Watch 7, Apple Watch 6, and Apple Watch 3. Sizes 49mm, 45mm, 44mm, 42mm, 41mm, 40mm, and 38mm are all suitable for genuine leather watch bands.
