Robert Robin a Paris n.212

Vissière Simon Havre n.16

Elève de Winnerl, chronometer with lever escapement.

Martin Boeck Wien, n. 34

“Montre de souscription” with double wheel duplex escapement. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017

Anonimo, double face

Monthly and weekly calendar, with virgule escapement and “diablotine”

Breguet, n.2644.

Montre a répétition de quart, a grand second d’un coup, sur le principes de chronomètre.

Duval fecit à Frèvillè

George Graham lever escapement, double-dial astronomical watch, equation of time. Double face watch.

Hahn H.ger Mecanicien n.483 Rue Helvètius 63 Paris

Quarter hour repeater with lateral lever escapement

Robin a Paris (Jean Joseph) n.599

Verge escapement

Julien Le Roy, orologio “double face”

“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.

Robin a Paris n.22940

Small sized watch, cylinder escapement, enamelled case

Attributable to Albert H. Potter

Chronometer with patented detent escapement.

Girard Rue de la Pompe n.41 Versailles

Duplex double wheel escapement, monthly republican calendar.

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

Cayetano Sanchez

Josiah Emery Straight Lever Escapement Chronometer.

Sigismund Rentzsch, London

Lever escapement, quarter hour repeater

Blondeau Antoine horloger du Roi , rue de la Paix 19, à Paris, n. 1634-24720.

Twin barrel chronometer, monthly calendar with ruby ​​lateral lever escapement