3417, Amagnetic, Steel Datograph The 42mm case is grade

The 42mm case is grade 5 titanium with no crown

the Tourbillon is regarded as emblematic of the very best of Parmigiani Fleurier's early efforts

It features a slimmer case than the Datograph (at 39

or roughly 300 examples in total

peripheral minute hands

3417, Amagnetic, Steel Datograph The 42mm case is gradeA ref. 3417 Amagnetic, a Calatrava like peer which blurs the line between utilitarian purpose and refinement. This was in 1958 the sole Patek Philippe model to be made only in steel. It features a 35mm case, Stern dial with an art deco 12 and handwritten Amagnetic font, and highly engineered antimagnetic manual calibre 12 400 AM. This 1959 example features an early production Type 1 dial with a larger petite seconds, no Swiss signature, and indices