Break system, passage of the loops through the back.
French work from the end of the 18th century / beginning of the 19th century (1798 to 1809).
Unidentified master's mark.
Gross weight: 3.73 g
Total height: 4.10 cm
Width: 1.20 cm
Condition: slight micro scratches and slight oxidation on the gold parts, and slight losses on the enamel, see photos.