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jlc_909

JLC 909

Calibre JLC 909/1-440C
© Jaeger-LeCoultre

Calibre 909 is an automatic alarm movement from Jaeger-LeCoultre.

Introduced in 2005, Calibre 909 was used in the Master Grand Réveil, a limited-edition watch. Special features included a perpetual calendar, 24 hour function, and switchable alarm on a bronze gong or just vibration.

Specifications

  • 30 mm diameter, 8.3 mm thick
  • 28,800 A/h
  • Glucydur balance, automatically compensating hairspring
  • Double barrel (time and alarm)
    • Bidirectional automatic winding for time
    • Manual winding for alarm
  • 36 jewels
  • Alarm hammer on bronze gong or vibration
  • Power reserve of 45 hours
  • 349 components

Jaeger-LeCoultre Alarm Calibres

  • Manual winding
    • 1951-1958 Calibre 489 (also P489 with Parachoc shock resistance) - screwed balance, dual top plates
    • 1952 Calibre 601 - transitional model, fewer than 2,000 produced, with a single top plate
    • 1953-1964 Calibre 814 - improved model (also Parachoc P814 and Kif K814) - screwed balance, single top plate
    • 1962-1979 Calibres 910 and 911 - 911 added a date function, solid balance, dual top plates
    • 1996 Calibre 914 - manual with gong
  • Automatic winding
  • Specialty calibres

jlc_909.txt · Last modified: 24.02.2022 15:48 by gerdlothar

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