Most people don't know how different that is as a fusée and chain consists of more movement parts than most Grand Complication pieces such as Tourbillons, Minute Repeaters, etc...
For example, this PLM has over 900 component pieces making up the movement which is crazy considering it's 40.5mm case size and rather svelte thickness 😉
The PLM editions are uber stealth and really are truly for connaisseurs as they are vitually indistinguishable from a standard Richard Lange. Just think, even Patek writes Tourbillon on their dials even though the Tourbillon is only seen through the case back. With the PLM, it is pretty much only the owner who knows what lies beneath and for me, that is another level of stealth 😜🤪