Differences

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+====== Column wheel ======
+{{wst>image_r|Lange_L952.1_RS|[[Chronograph]] movement [[Lange L952]].1 by [[A. Lange & Söhne]] with column wheel control, used in the [[A. Lange & Söhne Datograph-Perpetual]]}}
+**Column wheel** to a wheel of steel in the [[movement]] of [[chronograph]]s, which is equipped with the so-called columns (small turrets). It controls and synchronizes all major switching operations of the [[chronograph]] mechanism. Due to the high production costs, the column wheel is considered to be a criterion of value and quality.
+Other names for column wheel are "Swiss Castle" and "crown wheel".
+===== Number of Columns =====
+  *Four
+    *[[JLC 380]]
+  *Five
+    *[[Landeron 11|Landeron 11, 13]] (mono-pusher)
+    *[[Minerva 16-29|Minerva 29]]
+  *Six
+    *[[Angelus 250|Angelus 250, 252]]
+    *[[ETA 2894]]
+    *[[ETA A08.L01|ETA A08.L01/Longines L688, L788]]
+    *[[Frederic Piguet 1180|Frederic Piguet 1180, 1181]] (Hand-wound)
+    *[[Frederic Piguet 1185|Frederic Piguet 1185, 1186]] (Automatic)
+    *[[GO 60|Glashütte Original 60]]
+    *[[JLC 859|JLC 829, 859]]
+    *[[JLC 751|JLC 751, 752, 753, 754, 756, 757, 758]]
+    *[[Landeron 52]] (mono-pusher)
+    *[[Minerva 13-20|Minerva 20, 21, 22]]
+    *[[Rolex 4130]]
+    *[[Rolex 4160]]
+    *[[Venus 196]]
+  *Seven
+    *[[Landeron 39]]
+    *[[Valjoux 92]]
+    *[[Venus 150|Venus 150, 151, 152, 186, 187, 191]]
+    *[[Venus 175|Venus 175, 176, 178, 183, 184]]
+    *[[Venus 179|Venus 179, 185, 190]]
+    *[[Zenith El Primero]]
+  *Eight
+    *[[Excelsior Park]] 4, 40, 42
+    *[[Lange L951]]
+    *[[Lemania 2310]]
+    *[[Seiko 6S78]]
+    *[[Seiko 8R28]]
+    *[[TAG Heuer Calibre 1887]]
+    *[[Universal 281]]
+    *[[Universal 285]]
+    *[[Venus 170]]
+  *Nine
+    *[[Girard-Perregaux 3080]]
+    *[[Seiko 6138|Seiko 6138/6138]]
+    *[[Valjoux 22|Valjoux 22, 71]]
+    *[[Valjoux 23|Valjoux 23, 72, 78, 88, 90, 230, 234, 235, 236, 237, 720, 725, 726, 729, 730]]
+{{tag>Terms Column_wheel_chronograph_movements}}