I'm a psychologist who started repairing vintage Rolex watches as a side hustle. Now watchmaking is my main gig.

Greg Petronzi is a psychologist and a watchmaker.

True Patina

• Greg Petronzi was a psychologist and professor when he got into watchmaking on the side.
• Now he repairs vintage Rolex watches and works on pieces worth six figures.
• Petronzi said his watchmaking out-earns his work in psychology.

This as-told-to essay is based on a conversation with Greg Petronzi of True Patina, a watchmaker specializing in vintage Rolex repairs. He is also a licensed psychologist and professor at New York University.