Patek Philippe Ref. 3417 Amagnetic Review
Vintage

Patek Philippe Ref. 3417 Amagnetic Review

By watch-guy.com · Jan 13, 2018 · 28 replies
watch-guy.com
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Watch-guy.com takes readers on a personal journey with the Patek Philippe Ref. 3417, a legendary antimagnetic timepiece. This review blends a captivating origin story, from a chance supermarket sighting to a successful acquisition, with a detailed exploration of the watch's unique features and historical significance. The author's passion for vintage Patek Philippe shines through, offering valuable insights into this rare reference.

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Imagine the opening scene of a movie set . The location is the Hadron Collider in Switzerland. The actor is Benedict Cumberbatch playing the role of a scientist. He is wearing a crisp white lab coat. He walks into the lab and raises his arm and pulls back the sleeve of his coat.

He looks at his watch and this is what he sees




 








My first sighting of this fabled reference goes back many many years. I was still a neophyte collector and had never had my hands on a Patek . However even at that stage I was getting catalogues from Christies, Sothebys and Habsburg Feldman (as it was then , even before it became Antiquorum).  I had seen pics of these wonderful Pateks, Rolexes ,( mainly Princes and Bubblebacks- Paul New man was not even a salad dressing yet and who had even heard of Daytona.)
I was standing in line in a supermarket and even then I looked at everyone’s wrist. I had never seen anything exciting until…….  I spied this simple stainless steel watch on the wrist of someone standing in line in front of me.  I looked closer and saw three lines of writing – hmm not that common. He lifted his wrist and I  could get a better view of the watch . It was indeed the fabled ref 3417 Patek. Selling for about $7 000 at that stage. I almost thought of making him an offer but I just could not pluck up the courage and he disappeared into the distance. Both him and the watch never to be seen again.  
I never saw one again for a long while but Roni  M( a fellow collector )had one and it spurred my interest. Prices had rocketed since the $7 000 but I thought with a few trade ins and some extra cash it may be possible.

Then I planned a trip to NYC and got in contact with a dealer ( Andrew Shear )  He had one for sale. He had always wanted one of my Princes – a rose gold ref 2771 with a beautiful GF bracelet. We agreed on a trade of some pieces  and some significant green and the deal was done in a NYC deli.  I had it.







The 3417 is a manual wind watch. Again not any movement but the moderately rare ref 27 AM 400.  I have two models and will inter change between pics of both. The only difference is the dial.  One has an original Gay Frere bracelet and the other has a beads of rice strap ( non GF)

 


Those in the know understand that this movement is the antimagnetic movement. Similar to the Milgauss from Rolex, the Ingenieur from IWC , the Railmaster from Omega and the Geophysic from JLC.
Movements are not similar but all are protected from high magnetic fields by a faraday cage construction.
The Amagnetic is protected to about 1200 Gauss , similar to the Milgauss
Case – similar round case . 
The 3417 is  35mm in diameter – large by vintage standards

Thickness of the 3417 is 11mm thick to account for the Faraday cage



Lugs- the lugs are straight..  Interestingly they have a fine groove where the lug meets the case. A lovely touch.



 


Dial. There are three main variants. Two have simple stick indices and the number “ 12” is elongated in an art deco fashion. 60-70 % had “amagnetic “ on the dial and the rest did not. I have shown both models. 
The third dial is extremely rare with ?radium indices and ? radium numbers 3, 9 , 12. One was recently posted on Instagram by Andrew Shear.
 
I just love this pic and have included it. 
 
 
A comparison of the two common dials


  Crown-The 3417 has a lovely stainless steel crown with the calatrava cross embossed onto it.
 
Finally just some info about the movements

Early movements up to number729999 were the 12-400 movement but most were the later 27-AM 400 from movement numbers 730000 – 735239  and from 739700 to 739799 ( 5340 pieces)

All ref 3417 were made in steel ( about 500-600 ever made) but the amagnetic movement( 27-AM 400) was used in other reference numbers including gold cases ref 3410  3418  3419  3420  3434  2509  2545 and 2570

Technical data of the 27-AM 400 movement

1. 26.75 mm diameter
2. 4mm thick
3. 19800 bph
4. 18 jewels
5. breguet spiral balance 
6. gyromax balance wheel
I do not have any pics of my movements but have included a generic one from the web

 

Please note that all technical information is courtesy of Marco Stanga . His treatise on the amagnetic is detailed and is a must for anyone interested in this reference. My thanks go to him for his help and information as well as his patience.


































About the Patek Philippe Ref. 2509

The Patek Philippe Reference 2509 is a notable example of a time-only watch from the mid-20th century, characterized by its clean lines and classic proportions. This reference is recognized for its understated design, which emphasizes legibility and a refined aesthetic, positioning it as a quintessential dress watch within the brand's historical catalog. It represents a period where Patek Philippe focused on producing highly precise and elegantly simple timepieces, appealing to collectors who value traditional watchmaking without excessive complications.

Typically, the Reference 2509 features a case crafted from precious metals, often yellow gold, housing a manual-winding movement. The case diameter is generally around 35mm, a common size for men's dress watches of its era, providing a comfortable and discreet presence on the wrist. The watch is fitted with a sapphire crystal, protecting a dial that often presents with minimalist hour markers and hands, reflecting the design sensibilities of the time.

This reference appeals to collectors seeking a pure expression of Patek Philippe's design and mechanical prowess from the 1950s. Its enduring appeal lies in its versatility as a formal timepiece and its representation of a specific design philosophy. Variants of the 2509 may include different dial finishes or case materials, offering subtle distinctions for discerning collectors.

Specifications

Caliber
27 SC
Case
Yellow gold
Diameter
35mm
Dial
Silver
Crystal
Sapphire

Key Points from the Discussion

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The Discussion
RU
runie
Jan 13, 2018
Beautiful

Just a few weeks ago I had the opportunity to see a nearly as new example of this reference.... Really awesome and adorable!

WA
watch-guy.com
Jan 13, 2018
very rare in such pristine condition. [nt]

SH
shortys home
Jan 14, 2018
I saw the same one 😉 and I even had the chance to take a photo...

Cheers Henrik

AM
amanico
Jan 13, 2018
Are you sure about the 1200 gauss? I thought the Patek was more around 700 / 800 Gauss.

Anyway, as you mentioned it rightly, the 3417 is one of these legendary amagnetic watches you quoted. A must have. And yours is wonderful. Great review, my friend. Best, and thanks. Nicolas

WA
watch-guy.com
Jan 13, 2018
Thanks Nicolas

my reference is M Stangas book. He uses oersted rather than gauss but the conversion is 1:1 J

AM
amanico
Jan 13, 2018
Ok, I will check that. [nt]

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