As I said several times before, I'm truly appealed by the PPC, and I'm thinking a lot about this marvel. And arise this question. Given the following situation:
Century slide indicates 20, 21 & 22
We are on December 31st 2299, so the next step is January 1st 2300. But the century slide is at its end. So, what will happen? Will the mechanism be wedged?
It intriguates me to know, even if I hardly will be there to visualise it.
Regards,
Jean
This should shed some light....
Jean - The Century slide that contains the 3 centuries has facets on the underside of the display which are used to advance the slide upward on JAN 1 of a new Century, and a jewel will lock it in proper display position.
When 2300 comes around, the slide cannot move upward any more - so no change will occur - and a watchmaker will need to remove the movement and dial to reveal the calendar module, and replace the century slide with the replacement slide that contains the 23 and 24...
I assembled 2 animations (movie) in the link below - from a couple combined animations from some "DaVinci Perpetual" animations from the 1990s - so it shows how the century slide containing 19, 20, and 21 are advanced, and swaped to 22, 23 ,24...
Hope this helps visualize this.
Century Slide Demonstration Movie
Question for Perp.Cal owner/expert
If I understood well , there is an extra/additional (subsequent centuries) module included in the set and which obviously needs to be installed before 31.12.2299 making the watch PC for another couple of hundreds years. What we need to worry is , are there going to be still any skilled watch-makers left ?
Regards ,
Tom
This should shed some light....
Thanks Richard. Excellent post and presentation.
Regards , Tom
Thank you Richard
My fear is that as the slide can't move upward, this will cause the mechanism to be wedge. But maybe, it just can't move, so nothing wrong will happen.
Regards,
Jean
What would be nice is....
It would be great if both slides had a "22", so the owner could get the slide replace either before or after 2299 and enjoy New Year's eve and arrival of 2300 with no issue.
Exactly my thought
It would be nice to be there at that moment (nt)
Not just nice, I think a necessity...
If all watches have to be serviced immediately in the New Year, this will be a logistical nightmare! It's much smarter to change the century slide during a regular service in the years before the century change.
Kind regards,
Clemens