Mainspring needs to be re-attached or replaced. Otherwise in good condition. Has been sitting unused for 13 years.

Anyone have any sense of how much this costs? Do you think it is worth it? A like new case is nice, but after a few wears it is just going to get all banged up again. From what I can tell, it is not cheap to get the case repaired and repolished.

My perpetual calendar is not advancing for the month. I can advance the month manually, but when I simply advance the days the month does not advance. Is there anything I can do short of a servicing? Any idea what might have caused this?

Anyone know the retail price of the Tourbograph? Is honey gold a less expensive metal than platinum? I think it is a stunner. As for the L1 tourbillon, the visible date ring ruins it all for me.

There is a Sotheby's auction called Legacy of a Collector. Just twelve watches, but what twelve! Includes a PLM and a Tourbograph. Also some great PPs. Go to the Sotheby's web site, but you may need to register.

I have a cloudy crystal so clearly there is some condensation that seeped into my watch. Is this a big (expensive) deal to fix? The back of the watch looks fine. Is this usually sealed from the front or does the whole watch need to be cleaned and repaired?