1795: Difference between revisions
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meta>Gerd-Lothar Reschke Created page with '{{Jahresmenue|J1=1794|J2=1795|J3=1796|Inhalt= * The famous watchmaker Abraham-Louis Breguet invents a new type by balance spring with curved up overcoil: the [[Bre…' |
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Latest revision as of 14:58, 23 July 2021
- The famous watchmaker Abraham-Louis Breguet invents a new type by balance spring with curved up overcoil: the Breguet hairspring, named after him.