Astronomy, Chronometry and World Time

Throughout human history, measuring time has always referred to the stars. It was by observing certain stars and understanding their cycle that the first calendars were established with impressive accuracy. It took several millennia before this precision was enclosed in a timepiece like the ones designed by John Arnold.

The golden age of maritime explorations and discoveries ushered this precision into a new technical ideal – determining longitude at sea. Its immediate corollary was the identification of local time, which changed constantly as the observer moved along an east-west axis. Astronomy, chronometry and what we now call world time are thus inextricably linked within one and the same question, to which John Arnold and his son devoted their lives, their art and their genius.

This is how these three dimensions – astronomy, chronometry and world time – have come to be embodied in the House’s contemporary timepieces.  Echoes of John Arnold’s inventions and preoccupations, these pillars represent the foundations on which the Arnold & Son collections are based.


Thomas Herzog


Thomas Herzog
Hietzinger Hauptstraße 46, Top 4, 1130 Vienna / Austria
T: +43 664 46 70 176

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