Comments:
Patek 3445, Caliber 27-460M
Hi Guys, m in the dark, hoping for some light.
I have a 3445 monodate. From the extract from Patek Archive, the movement number , case number and movement reference ( 27-460M ) all added up.
However, on the movement it is stamped 30 Jewels !
From what I had been reading and researching , movement 27-460M come with 37 Jewels !!
Clearly, I need help here .
Thank you in advance for any lights into the above matter.
This is a marvellous automatic movement from Patek's past
It was quite thick at the time and needed several improvements after the first versions were produced with the 12-600 AT, but was really nicely finished (in the 27-460 versions).
This M version has been released in1961 until it was replaced in 1985 by the flatter 240.
My guess is that, in that period of time, it has evolved and the source you've been reading mentions a number of jewels which was not the one implemented at the very beginning.
The 27-460M produced in the early period had a serial number between 1119000 and 1119140, concerning the 1961-1965 years.
And 1122500-1129999 for the 1965-1970 period.
Would it be possible that your version is an early version and that the second series may have know some changes?
Here is a picture I found on the net where we can see "37 jewels" stamped:
From the serial numbers I could give above, it seems indeed that there were changes in the 27-460 M movement during his lifetime.
So, it just seems to be an evolution of this very fine caliber. If you wish to go further, you can certainly contact your AD or Patek Philippe, they will certainly help you on this matter.
However, please keep us informed and do not hesitate to share some pictures of your 3445!
Cheers, Mark
This message has been edited by Mark in Paris on 2015-04-19 03:37:08
This M version has been released in1961 until it was replaced in 1985 by the flatter 240.
My guess is that, in that period of time, it has evolved and the source you've been reading mentions a number of jewels which was not the one implemented at the very beginning.
The 27-460M produced in the early period had a serial number between 1119000 and 1119140, concerning the 1961-1965 years.
And 1122500-1129999 for the 1965-1970 period.
Would it be possible that your version is an early version and that the second series may have know some changes?
Here is a picture I found on the net where we can see "37 jewels" stamped:
From the serial numbers I could give above, it seems indeed that there were changes in the 27-460 M movement during his lifetime.
So, it just seems to be an evolution of this very fine caliber. If you wish to go further, you can certainly contact your AD or Patek Philippe, they will certainly help you on this matter.
However, please keep us informed and do not hesitate to share some pictures of your 3445!
Cheers, Mark
This message has been edited by Mark in Paris on 2015-04-19 03:37:08
null Hi Mark, I just...
null
Indeed, it stamped " thirty (30) jewels and seven (7) jewels " !!
Best Regards
Hi Mark,
I just open the case back to have a closer look and surprised how could I make such oversight!
Look again carefully !
Indeed, it stamped " thirty (30) jewels and seven (7) jewels " !!
Odd for this manner of stamping !
Best Regards
SK NG
It is indeed unusual
Glad you found your answer and it could be fun writing to Patek Philippe to learn about this particularity.
Cheers, Mark
Cheers, Mark
Much has been written about the 27-460
Using google you can find some great article esp from Walt Odets
I will try and link but not sure if it will work (Edit: you'll find it on Google easily)
Julian
Edit: Link
This message has been edited by Mark in Paris on 2015-04-19 03:56:01
Edit: Link