I believe this is the first generation of the Apple-made Classic Buckle, sold from 2015 to 2018. Due to aging, a black ink-like or tar-like substance is seeping out from the leather, so please refrain from using it as is. There is a risk of staining your arm or clothing, and the stain may not come out. I contacted Apple, and they said that this kind of defect occurring over time is a characteristic of the product, despite it being a high-end Apple-made leather band. For the above reasons, this is being sold as junk. Please use it for repairs or parts as you see fit. I am also listing another of the same item, but this one is in slightly worse condition. Thank you for looking.