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+====== Zenith 420 ======
+Calibre **420** is a [[hand-wound]] [[chronograph]] movement from [[Zenith]]. Released in the 1990's, this was the first hand-wound version of the classic [[Zenith El Primero movements|El Primero movement]].
+===== Overview =====
+As the El Primero renaissance continued in the 1990's, Zenith modified the movement to remove the [[automatic chronograph|innovative automatic winding mechanism]]. The resulting Cal. 420 is in other ways similar to the contemporary [[Zenith 400B|Cal. 400]], with a three-register chronograph counter setup and quickset date.
+===== See Also =====
+  * [[Zenith 400B]] - The base movement
+  * [[Zenith El Primero]]
+  * [[Zenith El Primero calibres]]
+  * [[Zenith El Primero watches]]
+<WRAP ud ud_mov>
+**Description:**
+  * [[Hand-winding]] movement
+  * [[Escapement]] Stone lever
+  * [[Column wheel]] calibre
+**Functions:**
+  * [[Chronograph]] 60 seconds, 30 minutes, 12 hours
+  * [[Small seconds]]
+  * [[Quickset]] date at 4 30
+**Data:**
+  * 13¼ [[ligne]]s
+  * D 30.0 mm, H 5.7 mm
+  * 25 [[jewels]]
+  * 36,000 A/h
+  * Power reserve 55 hours
+**Production period:**
+  * [[1994]]-present
+</WRAP>
+{{tag>Movements Manual_winding_movements Chronograph_movements Column_wheel_chronograph_movements Zenith_calibres Zenith_El_Primero_calibres}}