What is a corniche case?

A corniche case is a specific architectural housing style designed for portable clocks, characterised by its flat top, stepped mouldings, and rounded or pillared corners that frame the bevelled glass panels. This form provides an open view of the escapement and dial while offering robust housing for travel.

How do repeating mechanisms work?

A repeating mechanism allows the user to press a button on the top of the case to make the clock restrike the most recent hour or quarter-hour. This function was designed for checking the time during the night without needing a candle.

What does petite-sonnerie mean?

Petite-sonnerie is an advanced striking train that automatically chimes the hours on the hour and the passing quarters as they arrive. Unlike grand-sonnerie, it does not chime the previous hours alongside every quarter-hour sequence.

How are these clocks dated?

Dating relies on stylistic markers within the brass casting, dial typography, and movement signatures, such as maker marks from firms like Drocourt. Victorian examples often correspond to French production spanning the mid to late nineteenth century.