Patek Philippe

CL
2722

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Time testing for my perpetual chronograph :-)

3rd April Atomic Time - 17.34          5970G-17.34:14
4th April Atomic Time - 11.59         5970G- 11.59:13
5th April Atomic Time - 17.00        5970G - 17.00:13
6th April Atomic Time - 17.00         5970G - 17.00:13
7th April Atomic Time - 11.50       5970G - 11.50:14
8th April Atomic time - 11.51        5970G - 11.51:13
9th April Atomic Time - 12.28        5970G - 12.28:13
10th April Atomic Time - 14.16      5970G - 14.16:12

Throughout the whole 7 days, the watch was worn on my wrist for minimum 4-5 hours a day and the rest of the time , sitting nicely, dial up , on the watch case. It's wind everyday and chronograph has been activated at times.

It runs an amazing minus 2 secs for 7 days period

In the past , I have tested another 5970G before and it runs approximately + 1 sec a day. I have also tested 2 Datograph before , both samples run +8 sec a day. I must say this Patek is very well regulated.

I'm curious if any owner of 5970 has opposite or similar experience.....or anyone has a Lange Datograph that actually runs this accurately after conducting a test. Just curious because Dato has limited itself to 36 hours of power reserve so it should run better.

And, of course, my sample field is limited to only 4 samples.

Cheers,

CL