The Leather Link features handcrafted Roux Granada leather made in France. The band elegantly wraps around the wrist and magically attaches with flexible molded magnets that gently flex to help reduce accidental adjustments throughout the day. Features Band Size S/M - fits 140-180mm wrists Works with most versions of Apple Watch. Tech Specs Material: Leather Compatibility You can match this band with any Apple Watch Series 6 case of the same size. It also works with most previous versions of Apple Watch, including Apple Watch Series 3. The 40mm band works with the 38mm case; the 44mm band works with the 42mm case. Apple Watch Models Apple Watch Series 7Apple Watch Series 6Apple Watch SEApple Watch Series 5Apple Watch Series 4Apple Watch Series 3Apple Watch Series 2Apple Watch Series 1Apple Watch 1st generation Band is not water resistant