JLC 956

From Grail Watch Wiki
Jump to navigation Jump to search

Template:File C The JLC 956 is an alarm watch movement from Jaeger-LeCoultre.

The 956 is an automatic movement made up of 268 pieces. The repeater alarm function is descended from the original Jaeger-LeCoultre Memovox, dating back to 1950.

The most important difference between Calibre 956/912 and previous Memovox movements is the addition of a case-mounted brass gong. Rather than striking a protuberance on the steel case back, these calibres strike a circular gong mounted to the case back. This design was pioneered by Calibre 919 in 1989. Like other contemporary Jaeger-LeCoultre calibres, 956/912 uses ceramic bearings on it's rotor and has new gear profiles pioneered with "Autotractor" Calibre 975.

Like previous Memovox movements, Calibre 956 has two crowns. The crown at 4:00 is used to set the time and manually wind the mainspring, while the crown at 2:00 is used to wind the alarm and set the alarm time and date. Flush with the case, it winds the alarm barrel, which is not automatically wound otherwise. Pulled out, it can set the alarm time in one direction and the date in the other.

Calibre 956 was introduced in 2008 for the Jaeger-LeCoultre Memovox Polaris. It runs at 28800 vph, has 23 jewels, and a power reserve of 45 hours thanks to a large variable-inertia balance and ceramic ball bearings. One welcome difference between the Calibre 956 and earlier Calibre 918 and previous Jaeger-LeCoultre alarm calibres is the addition of a quickset date function.

Calibre 912

Calibre 912 is similar to Calibre 956 and was introduced about the same time, in 2007. It adds a 24 hour function.

Applications

Jaeger-LeCoultre currently uses this calibre in 3 watches.

Template:Jaeger-LeCoultre Alarm Calibres

Manufacturer:

Jaeger-LeCoultre

Description:

Automatic movement
268 components
Repeater

Functions:

Hour/minute/seconds
Date
Repeater alarm

Data:

H 7.45 mm
23 jewels
28800 A/h
Power reserve 45 Hours

Production period:

2008-present