Decimal watch with double time indication on a 24-hour basis, verge escapement.
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Made on the Houriet principle with a special dial
Revolutionary with Robin type 2 dial, republican calendar, verge escapement
Experimental verge escapement
Small sized watch, cylinder escapement, enamelled case
Straight lever escapement, quarter hour repeater
“Double face”, hour and quarter repeater, monthly calendar, centre seconds, early cylinder escapement.
Movement with experimental lateral lever escapement in the Robin style.
“Montre simple” in the style of Breguet.
Decimal watch with calendar and special escapement
“Resilient lever” lever escapement modified by Mortimer George Cole.
Cylinder escapement
Quarter hour repeater cylinder escapement
Movement with lever detent escapement invented by Robert Robin
Dead central seconds watch with star duplex escapement invented by Charles Edouard Jacot with 1/4 second diablotine
Hour and quarter repeater with cylinder escapement.