Hendrik Johan Kessels

Hendrik Johan Kessels (15 May 1781 – 15 July 1849) was a Dutch-born clockmaker and internationally renowned naval chronometer maker.

He was born in Maastricht, the third son of the cabinet maker Joachim Kessels and his wife Margaretha Caniëls.

When he was ten years old his father died and the family moved to Margaretha's home town of Blerick.

Kessels worked on the development of marine chronometers, observation clocks and pendulums for astronomical observatories.

He also continued to represent Breguet in northern Germany and Scandinavia and seems to have worked with the British chronometer maker George Muston.