Type XX / Type XXI

3810BR/92/9ZU

Type XXI fly-back chronograph in 18-carat rose gold with elapsed-minutes register by a centre hand. Self-winding movement with date and subdial for the seconds. Day/night indicator and 12-hour totaliser. Graduated turning bezel. Luminous hands and hour-markers. Screw-locked crown. Water-resistant to 100 metres.

A.-L. Breguet was the first to discover, through his oscillating platinum-weight watch, a formula which would produce a reliable automatic watch. Breguet sold one of his first self-winding watches to Queen Marie-Antoinette.

Breguet developed in 1820 an observation chronometer. It permitted the precise measurement of intermediate periods, thus anticipating the modern chronograph.

Reference 3810BR/92/9ZU

Material :	Pink gold / Steel
Calibre :	584 Q
Lines :	13½
Case thickness (mm) :	15.20
Case dimension (mm) H :	42.00
Jewels :	25
Water (m) :	100
Powers (hours) :	48

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