Differences

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+====== JLC 956 ======
+{{wst>image_cr|JLC|956}}
+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 [[JLC 919|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 [[JLC 975|"Autotractor" Calibre 975]].
+Like previous Memovox movements, Calibre 956 has two [[crown]]s. 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 28,800 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 [[JLC 918|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:
+  * [[Jaeger-LeCoultre Master Memovox]]
+  * [[Jaeger-LeCoultre Memovox Tribute to Deep Sea]]
+  * [[Jaeger-LeCoultre Master Compressor Diving Alarm Navy SEALs]]
+{{wst>template_jaeger-lecoultre_alarm_calibres}}
+<WRAP ud ud_mov>
+**Description:**
+  * [[Automatic]] movement
+  * 268 components
+  * [[Repeater]]
+**Functions:**
+  * Hour/minute/seconds
+  * [[Quickset date]]
+  * [[Repeater]] alarm
+**Data:**
+  * H 7.45 mm
+  * 23 [[jewels]]
+  * 28,800 A/h
+  * Power reserve 45 Hours
+**Production period:**
+  * [[2008]]-present
+</WRAP>
+{{tag>Movements Automatic_movements Alarm_movements Automatic_alarm_movements Jaeger-LeCoultre_calibres Jaeger-LeCoultre_Memovox_calibres}}