Ulysse Nardin Perpetual Calendar Leap Year Change
Complications

Ulysse Nardin Perpetual Calendar Leap Year Change

By amanico · Feb 29, 2008 · 26 replies
amanico
WPS member · Horological Meandering forum
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Amanico captures a rare horological event: the leap year changeover on a perpetual calendar. This post highlights the intricate mechanical dance of a perpetual calendar as it transitions from February 29th to March 1st, a spectacle that occurs only once every four years. His detailed, timed photo sequence offers a unique, real-time look at this complex complication in action.

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Well, we'll certainly are a lot ot stand near uor PC, and to observe the change of the Date...
This will certainly be a different spectacle for each of us, due to the diffrent time zones, and to the different brands of our PCs...

Here's what I saw..
.
1/ 8.47 PM, The day ( Friday) remains the same, but the date begins to move:



2/ 9.00 PM:

The Two discs of the Date are seriously moving...



3/ 9.07 PM: The Date has just changed...From 29th to 30th...



4/ 9.58 PM: The Date changes again...From 30th to 31th.



5/ 10. 50 PM: For the 1st time, the Day moves...



6/ 11.40 PM: From Friday, we go to ...Saturday..



7/ 0.06 AM: The Date and the Month have just changed!



It was a bit military style, with all these schedules, but hey, I'm sure some of you are still lurking at their watches later in the night...LOL

Best!
Nicolas

added to Editor's Pick

This message has been edited by AnthonyTsai on 2008-03-01 14:19:52

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MK
mkvc
Feb 29, 2008

I'm on the West Coast of the United States, where it is just after 11:00 PM. We'll see what the next hour brings. Congratulations on your successful changeover.

AM
amanico
Feb 29, 2008

No one till now could see in his life, or even imagine that the 30 or 31st of February really exists! LOL Thanks, but I did nothing, my PC did it for me! Best. Nicolas This message has been edited by amanico on 2008-02-29 23:10:27

JE
Jester
Mar 1, 2008

with the 2 different U.N. Preptuals that we observed from the Perpetually Purists event here. Both started shortly before 21:00 and finished around 00:10. While the whole process does take a bit long in relative scale, I've got to say I'm impressed by the consistency in performance of the UN movement. Can't nearly say the same for a few others...

AN
Andy
Mar 1, 2008

well I now have 4 years to track down a PC for the collection..!!! Great piece too Nicolas..!! Andy.

BH
BHK9
Mar 1, 2008

Hi nicolas, glad that you captured every hourly moement of your pc,Congrats!! Mine,i am too busy handling and enjoying three and have to sacrify the shot. Thanks.... BHK9

AM
amanico
Mar 1, 2008

Well, that's what I thuoght before contemplating Jester's collection... If not the king, you're at least the Prince, my friend. I'm a bit thinking of our conversation about multiplicating the pieces on the same complication...If you know what I mean... I'm in trouble. LOL Best. Nicolas

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