Anonimo, double face

Breguet, n.2644.

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

Andrè Hessen a Paris

Weekly winding device, monthly calendar, with comma escapement

Joseph Feune, Delemont Swiss

Escapement “pallet pin weel”

Dufour et Fol a Geneve

Decimal watch with double time indication on a 24-hour basis, verge escapement.

Robert Robin de la Soc.te des Inv.tons et Dècouvertes, n.3

Lateral lever escapement, quarter hour repeater.

Mugnier, Horloger de l’Empereur et du Roi à Paris n.726

Souscription watch

Andrè Mery à Paris n.163

Detent anchor escapement by Robert Robin, quarter hour repeater.

Breguet et Fils , n. 1474

“Montre de souscription” case n.918 sold au freres Chaudoir 20 Nivose an 13 (10 Janvier 1805)

Theodore Leroy horloger du Roi n.10792

Reverse hour-quarter repeater (pull)

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.

Attributable to Albert H. Potter

Chronometer with patented detent 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

Anonymous Swiss craftsman

Tourbillon with rotation per minute

Ring thermometer signed Richer Inv. and made in Paris 12 ventose an 5.

Anonymous, n. 4097

Anonymous watch with central and auxiliary dead seconds, chicane lever escapement