Why Hermès behaves differently to every other house
The honest sentence about Hermès in a Yupoo catalogue is this: leather is not photographable. Grain, temper and the way a hide takes dye are physical properties, and a screen flattens all of them. Which means the sensible buyer treats this brand as the least verifiable one in the directory, and adjusts expectations rather than the search terms.
What you can still check: saddle-stitch angle and pitch, edge paint depth, and hardware weight. All three are visible in a careful frame. All three are also the parts a rushed maker cuts corners on, so they are the right things to insist on.
The last thing worth saying is that shape discipline matters more here than anywhere else, because these silhouettes are simple. A Birkin-style bag with a slightly wrong proportions is instantly readable at a distance - there is nothing on it to hide behind.
Written for Hermès specifically. The same discipline applied to a different house produces a different list - see the brand index.