Article of the week
Louis Erard Unveils the Limited-Edition Gravée Main

Since 2021, Louis Erard has been redefining the boundaries of Métiers d’Art, from Grand Feu enamel and guilloché to wood marquetry, and soon, gold wire inlay. Now, Gravée Main opens a new chapter, paying tribute to one of the oldest crafts in watchmaking hand engraving.
Gravée Main represents a new milestone in Louis Erard’s Métiers d’Art series. This limited edition of 99 unique timepieces places hand engraving at center stage, with every metal element entirely engraved and finished by hand, a meticulous process that requires more than 50 hours of work. 

Glossary

Equation of time

Is a complication that illustrates the difference between mean solar time (average time) and true solar time based on the position of the sun. This difference occurs because the Earth's orbit around the sun is slightly elliptical, resulting in varying lengths of days throughout the year. Watches equipped with this function display the offset between mean time and solar time, allowing users to adjust their watches accordingly.