But then realized it was a "Tiffany" one. Even if I don't understand why these pieces are more expensive and I'd never buy one (it only proves that the brand can cost more than the watch itself), Tiffany's Patek are always more expensive, that's all!!!
You understand everything! When you see that sport watches are far more expensive on Chrono24 than in boutiques and that is the opposite for the classical ones, you understand immediatly the structure of the demand!