Another nice Patek Philippe 3417 Amagnetic, signed Beyer.
The 3417 is one of my very favorite references in the vintage Patek universe.
I prefer the early ones, but this one doesn't lack interest nor charm. With a trick, the Beyer signature.
The 35 mm case is very much my taste, and in person, it wears a tad bigger.
And the Cal 27 AM 400 is a joy to admire!
The case back and the anti magnetic shield: