Swiss repeater with independent dead centre seconds Circa 1870

Gold pocket watch with open face by Breguet
–
A very fine and rare, Swiss, two-train, quarter-repeating pocket watch with independent jump centre seconds in a plain 18-carat gold case, circa 1870.
White enamel dial with Roman hours, outer minutes/seconds track, centre seconds, and blued Breguet hands. And the movement is 19′” calibre with a two train lever escapement. Dial signed and case numbered.
–
Diameter: 49 mm
–
Signed: Breguet
–
It is very unusual to find that time these two complications: independent dead seconds in which the movement has two trains, one conventional, and the second with a sweep-seconds hand which can be stopped without stopping the main train (invented by Moise Pouzait in 1776) activated by push-piece located on the case band at 7 o’clock and a quarter repeater mechanism activated by a slide on the band at 3 o’clock.