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'''Twin mainspring barrels''' | '''Twin mainspring barrels''' | ||
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Two barrels in tandem. Lange's twin [[mainspring]] barrels allow the implementation of a progressive [[power-reserve indication]] and deliver a power reserve of at least three days. | Two barrels in tandem. Lange's twin [[mainspring]] barrels allow the implementation of a progressive [[power-reserve indication]] and deliver a power reserve of at least three days. | ||
[[Category:Glossary]] | [[Category:Glossary]] | ||
Version vom 9. Februar 2009, 00:38 Uhr
Twin mainspring barrels
| other languages: de |
Two barrels in tandem. Lange's twin mainspring barrels allow the implementation of a progressive power-reserve indication and deliver a power reserve of at least three days.