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--- lange_l952 [02.12.2022 20:38] – created - external edit 127.0.0.1
+++ lange_l952 [09.04.2024 17:03] (current) – gerdlothar
@@ Line 1: / Line 1: @@
+====== Lange L952 ======
+**L952** is a movement by [[A. Lange & Söhne]].
+[[Hand-winding]] [[manufacture movement]] with [[flyback]] [[chronograph]] function, [[perpetual calendar]] with [[moon phase]] indication, [[big date]] and precisely [[jumping]] minute counter.
+===== L952.1 =====
+{{wst>image_cr|Lange|L952.1}}
+{{wst>image_cr|Lange|L952.1 ZB|L952.1 Dial side}}
+The caliber **Lange L952.1** is used in the model [[A. Lange & Söhne Datograph Perpetual|Datograph Perpetual]].
+<WRAP ud ud_mov>
+**Description:**
+  * [[Hand-winding]] movement
+  * [[Flyback]] [[chronograph]]
+  * [[Perpetual calendar]]
+  * [[Column-wheel]] mechanism
+  * Shock-resistant [[Glucydur]] [[balance]]
+  * [[Swan's neck fine regulation]]
+  * [[Plate]]s and [[bridge]]s in untreated [[Nickel silver]], [[perlaged]] and decorated with Glashütte ribbing
+  * All edges [[chamfered]] and polished
+**Functions:**
+  * Hours, minutes
+  * [[Small seconds]] with [[hacking seconds]]
+  * [[Flyback]] [[chronograph]]
+  * [[Perpetual calendar]] with day of week, month, leap year, [[day-/night indication]], [[moon phase]] indication and [[big date]]
+**Data:**
+  * Ø 32 mm, height 8 mm
+  * 45 [[jewels]], including 4 in screwed gold [[chaton]]s
+  * 18,000 A/h
+  * 556 components
+  * Power reserve 36 h
+**Production:**
+  * From ?
+</WRAP>
+===== L952.2 =====
+{{wst>image_cr|Lange|L952.2}}
+The caliber **Lange L952.2** features a [[tourbillon]] with patented [[stop-second]] and is used in the model [[A. Lange & Söhne Datograph Perpetual Tourbillon|Datograph Perpetual Tourbillon]].
+<WRAP ud ud_mov>
+**Description:**
+  * [[Tourbillon]]
+  * Precision adjustment: shock-resistant [[cam-poised balance]]
+  * Intermediary wheel cock and tourbillon bar engraved by hand
+**Functions:**
+  * [[Small seconds]] via tourbillon, patented [[hacking seconds]]
+  * [[Day/night indicator]]
+  * [[Power reserve indicator]] at 9/10 h
+**Data:**
+  * Ø 32.6 mm; height: 9 mm
+  * 59 [[jewels]], including 5 in screwed gold [[chaton]]s
+  * 2 diamond capstones
+  * 18,000 A/h
+  * 729 components
+  * Power reserve 50 hours
+</WRAP>
+===== L952.4 =====
+The **Lange L952.4** caliber is used in the [[A. Lange & Söhne Datograph Perpetual Tourbillon|Datograph Perpetual Tourbillon Honeygold "Lumen"]].
+<WRAP ud ud_mov>
+**Data:**
+  * 57 [[jewels]], 5 of which are mounted in screwed gold [[chatons]]
+  * 1 diamond cap jewel
+  * 684 components
+</WRAP>
+{{tag>Movements Manual_winding_movements Chronograph_movements Perpetual_calendar_movements Tourbillon_movements A._Lange_&_Söhne_calibres}}