LUC 1860, Steel 101.033 this 46003 is just 7mm

this 46003 is just 7mm thin

This example has no hairline fractures whatsoever and is signed Swiss alone

Since Patek Philippe invented the Perpetual Calendar Chronograph in 1941

It sports a 37mm Piquerez case with dual fish crowns

It represents the final chapter in all of Pre-Daytona and early Rolex chronograph evolution

LUC 1860, Steel 101.033 this 46003 is just 7mmA LUC 1860 in steel from 2024. This is a more contemporary take on the original 16 1860 rendered in a 36. 5mm steel case with a Metalem salmon guilloch dial. It boasts the same architecture as the original, with dual mainsprings, COSC certification, and Geneva Seal. Roughly 100 examples can be made yearly. It is discerningly updated to a slightly more contemporary and relaxed aesthetic, without losing any of the magic which Parmigiani intended.