Prima Hora – SOL 1

Prima Hora is a contemporary watchmaking project inspired by the origins of timekeeping.

For centuries, humanity has relied on the Sun to understand and measure time. Long before the invention of mechanical clocks, solar time was the natural reference. However, due to the Earth's axial tilt and its elliptical orbit around the Sun, solar time is not perfectly regular. This phenomenon is known as the Equation of Time.

The SOL 1 watch brings this forgotten astronomical phenomenon back to the center of the time-reading experience.

It is distinguished by:

A single hand used to read both hours and minutes.
An annual hand inspired by the shape of the Equation of Time cam, completing one full rotation per year.
A display that allows the wearer to visualize the difference between solar time and mean time.

Its design is inspired by Kepler’s First Law, which describes the Earth's elliptical orbit around the Sun. The oval-shaped case echoes this celestial geometry and highlights the connection between astronomy and the measurement of time.

Powered by a manual-winding movement and housed in a titanium case, the watch also incorporates celestial references on its dial, including luminous constellations and a representation of the Sun.

Through SOL 1, Prima Hora proposes a new way of experiencing time: a return to a more natural, poetic, and astronomical vision of watchmaking.

Prima Hora, everything after is creation.