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JLC 470

Calibre 470 was a chronometer-grade hand winding movement from Jaeger-LeCoultre.

Originally used in the military Mark 7 A, Calibre 470 was a hand-winding movement with great precision. It evolved into the Calibre 488 SBr, used in the Mark 11, which added hacking seconds. Calibre 468 was similar. The next revision was Calibre P 478 BWSBr, the movement used in the legendary Jaeger-LeCoultre Geophysic chronometer of 1958. The 478 added shock protection and a swan neck regulator but was otherwise similar to the 488.





  • Diameter 12.75 lignes, 28.8 mm
  • Height 4.55 mm
  • 15, 16, or 17 jewels
  • 18,000 A/h
  • Power reserve 40 Hours

Production period:

  • 1940's

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jlc_470.txt · Last modified: 11.10.2021 21:09 (external edit)

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