Most of their Fine Watch Making Collection is really impressive. However, on their automatic watches IMHO there just isn't an excuse for not using gold or platinum on their high end pieces. I thought their rose gold Calibre Perpetual Calendar was nice, but at $65K I just don't see why it doesn't have a gold or platinum rotor. Automatic Pateks, APs, VCs, Langes, and Piagets which sell for less money use gold or platinum for rotors on their watches. To compete with the big dogs they should use precious metal for the rotor. Would using a gold or platinum rotor drastically change the watch, no, but I feel like something is missing without it.