Attributable to Albert H. Potter

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Anonymous attributable to Charles Edouard Jacot, Switzerland

Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine

Sigismund Rentzsch, London

Lever escapement, quarter hour repeater

Ch.phe Blanchard à Porrentruy , n.6402

Decimal watch with calendar and special escapement

Breguet et Fils n. 802

“Montre de souscription” case n.307 « Remise a son excellence l'Ambassadeur de Espagne pou faire passer a Monsieur X » 5 Terminador an 9 (24 Jullet 1801)

Anonymous, signed Breguet, n. 214

“Montre de souscription” apocryphal. Watch published in George Rigot's book: “Montres de souscription et a tact de Breguet“ ed.2017

Charles Oudin, Elève de Breguet Palais Royal, n. 65

“Montre de souscription” with double wheel duplex escapement

Antoine Tavan

Movement with experimental lateral lever escapement in the Robin style.

Charles Mairet, n. 228

Dead seconds watch with lever escapement by Pouzait

Breguet, n.247 nouvelle series.

"Montre simple plate excentrique nouveau calibre 16½ lignes échapt cilindre, cadran émail” sold to Monsieur Benardaky on 01 luglio 1850 at prize of 1200 FF.

Robin a Paris (Nicolas Robert-Jean Joseph?) n.10838

Central seconds, regulateur dial, cylinder escapement

Hilaire Bassereau n.761

Robin style movement with cylinder escapement.

Frederik Jürgensen Kiőbenhavn (Copenhagen)

Cylinder escapement.

Tschiffelj, Berne Swiss,

Double wheel verge escapement.

Breguet, n.1689

“Rèpètition de Première Classe” with ruby cylinder escapement, sold to an anonymous “monsieur” on 13 July 1811 for 1,728 FF, resold to Monsieur Gozzel on 22 May 1822 for 900 FF.

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.

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