I don't know the wash details (holes, distressing etc.) but I own one pair with microstitching / indian head tag at the fly. So it's not usuall but based on your pictures (details on jeans) they are authentic.
I wouldn't say so, it's different I think. Here are some detailed pictures, no flash, no postprocessing, indoor, natural light (btw. 824B is very comfortable, almost like joggjeans but with standard denim texture. it's 92% cotton, 6% polyester, 2% elastane mix).