Vacheron & Constantin Genève

Robin a Paris (Jean Joseph) n.599

Verge escapement

Breguet, n.441 (nouvelle series)

“Chronometre de poche” with modified Earnshaw detent escapement, sold to Monsieur Hottinguer (banker of the Maison Breguet), on 11 October 1844 for 1,500 FF.

Breguet, n.1782

“Rèpètition à minutes” chronometer with double-wheel duplex escapement, sold to the Spanish Princes in Valençay on 29 May 1809 for the price of 2,400 F.

Breguet et Fils, n.4196

Garde temps chronometer with going barrel started in 1823 and completed in 1857 sold to an unknown customer

Le Roy Charles Bazile au Palais Royale 88 à Paris n. 3568

Hour and quarter repeater with cylinder escapement.

Anders Lundstedt, n.414

Sully's escapement

Anonymous n.14988

“Montre de souscription” with verge escapement.

Annual calendar with manual equation of time, thermometer (Bongrand system)

Julien Le Roy n.4073 finished by his son Pierre Le Roy

Hour and quarter repeater with verge escapement

Bazile Charles Le Roy

“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.

Janvier fils à Paris en 1805

First generation French lever escapement movement

Breguet n.125

“Compteur militaire” cylinder escapement 84 divisions

Gregson Jean Hor. Du Roy

Virgule escapement

James Boyd, Cupar fife n.293

Ruby lever escapement.

Lefevre a Paris

Detent Lever escapement invented by Robert Robin. Restored by Breguet.