Ed Hahn – Introduction

Extras September 23, 2002 admin

Ed Hahn



Hi, I’m Ed Hahn, your host for Time Machine. Since I’m an engineer by training, my interest in timekeeping usually turns to the question: “How does it work?”, be it a mechanical movement, quartz oscillators, sundials and astrolabes, and even ancient megalithic structures with calendar-like properties – for example Newgrange in Ireland.

With this in mind, Time Machine will be a notebook about a wide variety of topics, linked by my interest in the “how’s” of timekeeping – from micro-electronics to machines to celestial mechanics – and contemporary and vintage watches which catch my attention.

Since these articles are a personal exploration, there are bound to be errors or omissions which I inadvertently add to the mix. I invite you to contact me with comments, complaints, and corrections, at ehahn@alum.mit.edu.


Background Info

Ed Hahn is an engineer who lives outside Washington DC with his wife, Debby, and three cats.

Ed was born and raised primarily in the Cleveland, Ohio area, (which explains his affinity for vintage railroad watches from the Ball Watch Company). He attended college at a small engineering school in Boston, Massachusetts (E. Howard Watch Company digs), and received his first fake Rolex as a gift as a junior.

He currently works as an Air Traffic Control engineer, working on means to improve the safety of the ATC system while reducing delays which seem endemic to air travel these days. Prior to his current job, Ed was an engineer with two major airlines. In his time away from work and TimeZone, Ed engages in his other hobbies of high-performance driving and listening to jazz and more esoteric music.

Ed’s first mechanical watch was an Oris Modern Classic. It was purchased as a wedding gift in 1998. Immediately after receiving the watch, Ed searched the internet to get more information about this unknown brand, and discovered TimeZone. His second purchase was a JLC Reverso Duo, which sealed his fate as a WIS. Among the other favorites in his collection are a Chronoswiss Orea and the JLC Master Moon.

In addition to contemporary watches, he also collects vintage railroad-grade pocket watches, particularly from the Illinois, E. Howard, and Ball watch companies.