In 1675, Dutch scientist, astronomer and inventor Christiaan Huygens introduced the first balance spring, a brilliant piece of engineering at the heart of mechanical timekeeping to this day.
Huygens’s invention, a coiled spring that releases energy at a constant rate, allowed reliable clockworks to be produced on a small and portable scale, revolutionizing navigation, astronomy and daily life.

To honor the 350th anniversary of this enormous accomplishment, Dutch independent watchmaker Brendan Horneman created the Hugenius, a watch with perhaps the most unique day-date display ever designed.
Horneman teaches at the Dutch National School for Watchmakers, Goldsmiths and Jewelers in Schoonhoven. He created his watch brand in 2018, but hasn’t released anything in years.

The Hugenius has a 40mm titanium case, housing an ETA caliber 2834-2 automatic movement, which Horneman modified to accommodate his unique dial layout.
The date is displayed in a standard rectangular window at six o’clock, but the days are printed on the outermost track of the dial using a combination of astrological symbols and registered with the largest hand on the dial.