Using this Michele diamond case for your Apple Watch® is easy. Just carefully place your 41mm Series 7 - 9 Apple Watch® into the case. You can then attach the seven - link bracelet band in your favorite plating. When using your watch with the case, avoid exposing it to extreme temperatures or harsh chemicals. To maintain its shine, gently wipe the case with a soft, dry cloth regularly. Also, be careful not to scratch the mineral crystal. And remember, the case has a water resistance of 3 ATM, so it's okay for light splashes but not suitable for swimming or diving.