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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

Labradorite

A mineral belonging to the calcium-rich "feldspar" group, commonly found in igneous rocks. This mineral is known for its vibrant display of colors, which is a result of its internal fractures. This phenomenon, referred to as "labradorescence," gives the impression that the stone is playing with an array of colors as light reflects back and forth within it. Labradorite possesses a triclinic crystal system and has a hardness of 6 to 6.5 on the Mohs scale, making it relatively durable.

Labradorite Meanings and Crystal Properties - The Crystal Council
Signum Cero labradorite dial | Vintage watches, Watches, Dive watches