Rolex is a terrible example. On top of their products aiming to last generations (nobody's going to leave Apple Watch to their grandchildren), they're also well known for not reporting any sales figures what so ever.
Nobody can tell you how many Rolexes there are in total, let alone the sales figures of a specific model of a Rolex. That's partially what makes them so valuable. People usually don't change Rolexes every year when the new model is out.
