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| 4001 anonym Features quarter repeater key wind and set option: sub second Data 19.25''', Dm= 43.3mm H= 5.1mm 22 jewels f = 18000 A/h power reserve 30h | Remarks long lever with counter weight parachute shock protection and bimetalic temerature compensation after Breguet repeater: slide operated, 2 hammers on spiral gongs, hook-lever regulator The fourth wheel on the dial side indicates that probably a more economical version with ruby-cylinder escapement was available. Example, year: signature; shock device ca. 1830: - 3, 19008; Parachute (Breguet) |
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