No instrument
verifies the finish.
LOGEUIL does not use optical instruments to judge surface quality. The final arbiter is the craftsman's fingertip. Under a loupe, a mirror-polished surface must reflect without distortion. A côtes de Genève decoration must be perfectly parallel — verified by eye, by experience, by the standard set down in the atelier in 1942.
When a movement passes from finishing to assembly, it is placed on a sheet of white velvet and examined under four different angles of light. Any imperfection — a scratch too fine to photograph, a bevel one degree off — returns the component to the bench. There is no acceptable imperfection.
Bridges & Plates
German silver, hand-bevelled
Main Spring
Nivaflex® — 0.09 mm
Balance Wheel
Glucydur® beryllium copper
Jewels
27 synthetic rubies, pressed cold