French 18 carat gold open faced pocket chronometer Circa 1890

Gold ankerchronometer by Antoine Frères
–
A French 18 carat gold open faced pocket chronometer, circa 1890. Possibly a deck chronometer. High-quality ankerchronometer movement with screwed gold chatons. Dial signed, case and movement with matching numbers. White enamel dial in very good condition with Roman hours and Arabic five minutes, subsidiary seconds, blued steel hands. Plain Louis XV case with a large five-part lateral hinge. Dial signed, case and movement with matching numbers.
–
Diameter: 50 mm
–
Weight: 94 g
–
Signed: Antoine Frères Besançon