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JLC 909
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
- 1956-1966 Calibre 815 - bumper automatic, 18,000 A/h; 825 adds a date function
- 1959-1969 Calibre 825 - Cal. 815 plus date function
- 1969-1983 Calibre 916 "Speedbeat" - free-turning rotor, 28,800 A/h, date, Kif only
- 1994-2008 Calibre 918 - updated 916
- 2007-present Calibre 912 - automatic, gong, 24-hour function
- 2008-present Calibre 956 - automatic, gong
- Specialty calibres
- 1989 Calibre 919 - perpetual calendar and bronze gong
- 2005 Calibre 909 - selectable gong or vibration
jlc_909.txt · Last modified: 24.02.2022 15:48 by gerdlothar
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