Imitation Long Window

Taken all the way down to base materials, one Imitation Long Window is 3 crafting steps deep and needs 3 intermediates — Clear Glass Lens ×4, White Ash Lumber ×4 and Natron ×4 — which resolve to 4 distinct raw materials totalling 28 units, plus 61 crystals.

That bill outweighs 9,936 of the 13,602 recipes tracked here and 1,019 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 13 of those crystals go into the final step; the other 48 are burned by the intermediates, so the real crystal cost is 35 Wind Crystal, 20 Water Shard and 6 Ice Crystal.

The chain crosses two disciplines — Carpenter to Lv 74 and Alchemist to Lv 28 — so no single class can finish it unaided.

All 4 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Clear Glass Lens has the widest use: 96 recipes call for it, spanning six of the eight crafting classes.