Apple 40mm Modern Buckle - Strap for smart watch - Medium size - saddle brown - for Watch (38 mm, 40 mm, 41 mm). A small French tannery established in 1803 produces the supple Granada leather for this elegant band. The smooth top-grain leather is lightly milled and tumbled to maintain its refined texture. What looks like a solid buckle is actually a two-piece magnetic closure that's delightfully simple to secure. Apple also added an inner layer of Vectran weave for strength and stretch resistance.