mattg6
156
3970 day window misaligned; Any idea how big a fix this is?
Waiting to be seen for my patek service appointment. I’ve circled the calendar function around several years and the day window actually gets more misaligned (sometimes completely hidden) on particular months. Maybe it was just installed incorrectly at my last service?


Vintage
unekual · Mar 5, 2021
Explore the Patek Philippe Ref. 3970 First Series with original two-tone dial. Discover collector insights on this rare perpetual calendar chronograph.
38 replies5278 views

Collection
unekual · Aug 18, 2020
Explore the ultra-rare Patek Philippe Ref. 3970P Second Series perpetual calendar chronograph. Discover collector insights on its scarcity, unique features, and market value.
51 replies7223 views
By: bp1000 : January 20th, 2023-11:13
Take it through several 24 hour periods, moving time forward, slowing at 10pm as the change over happens. It will likely still be an issue so with the time at 7am, activate the day corrector several times and see if it fixes itself. I know of a few instan...
By: bp1000 : February 1st, 2023-16:53
I'm sure you are aware, but just curious, are you activating the correctors during the right time? It would normally be 7am. I've seen these break if you correct the calendar at 7pm for example.