Chêne is probably the most different Serge Lutens scent. It's the driest at least. I own a bottle of it and I must say I'm not sure whether one could wear it on a regular basis. I don't. The opening notes of Chêne are very green and piercing of tannins, like very bitter, green herbs freshly cut (given by the black thyme). Then it passes to a rounder heart, deep and woody that's really enjoyable. The drydown is still bitter-green and woody but gets smoother with a mossy, powdery and slightly animalic touch of immortelle, beeswax and oakmoss giving a hint of sweetness balancing the initial bitterness. All it's well balanced and unsweet, but the whole effect is anyway dense, complex and quite important. You must for sure like a lot woody and unsweet scents to like it and of course to like the very piercing heady initial bitter blast.