Table of Contents
JLC 814
Calibre 814 was a manual winding alarm movement from Jaeger-LeCoultre.
Introduced in 1953, Calibre 814 joined Calibres 489 and 601 in the Jaeger-LeCoultre Memovox range. Essentially an improved version of Calibre 489, Cal. 814 would be produced until 1964, when it was replaced by the popular Calibres 910 and 911. In 1956, Jaeger-LeCoultre also introduced an automatic version of the Memovox, using Calibres 815 and 825.
Calibre 814 was also available with Parachoc shock protection as Calibre P814 and with Kif shock protection as Calibre K814.
As in Cal. 489, the alarm hammer struck a protuberance on the back plate, making a distinctive buzzing sound. Even if the alarm was not wound, the hammer rattled freely against the protuberance.
Specifications
- 12.5 lignes in diameter, 5.2 mm thick
- Glucydur balance, automatically compensating flat hairspring
- 18,000 A/h
- Double barrel (time and alarm)
- Direct sweep seconds
- 17 jewels
- Alarm hammer inside case back
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