Patek Philippe Ref. 5740/1G: Observing the Perpetual Calendar Date Change

joenghenry · 2020-12-31T08:40:34Z

Explore the Patek Philippe Ref. 5740/1G perpetual calendar's date change and compare it with other Patek PC mechanisms in this collector's discussion.

In this festive New Year's post, joenghenry shares a personal moment with his Patek Philippe Ref. 5740/1G, capturing its precise date change at the stroke of midnight. His contribution highlights the intimate connection collectors have with their timepieces during significant moments. The ensuing discussion delves into the nuances of Patek Philippe perpetual calendar mechanisms, offering insights into their varied date change behaviors.

Key Points from the Discussion

The Patek Philippe Ref. 5740/1G, an ultra-thin perpetual calendar, performs its date change shortly after midnight, as observed by the author at 0:36.
Another Patek Philippe perpetual calendar, the Ref. 5159, a retrograde PC, exhibits a near-instantaneous date and day change shortly before 23:59, demonstrating variations in complication behavior across references.
Fellow collector mrds also celebrated the New Year with a Patek Philippe perpetual calendar, showcasing a different reference and highlighting the community's shared appreciation for these complications.
The ultra-thin nature of the Ref. 5740/1G is a key characteristic, influencing its design and the integration of its perpetual calendar functions.

The Discussion

GLau

Dec 31, 2020

functions of this ultra thin 5740 PC !

mdg

Dec 31, 2020

...which PCs change instantaneously at midnight?

joenghenry

Dec 31, 2020

On the other hand, a "simpler" retrograde PC like 5159 though not instantaneous, does perform date + day change in a blink, shortly before 23:59 in my sample. Cheers, Henry

mrds

Dec 31, 2020

Not wearing the 5740 tonight but another PC. Another 16 minutes to go... All the best to you! Daniel

Mike H

Dec 31, 2020

Superb photo of a stunning watch 👍👏👏 Happy New Year to you Henry!

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Patek Philippe Ref. 5740/1G: Observing the Perpetual Calendar Date Change

Key Points from the Discussion

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