====== Lange L942 ====== {{wst>image_cr|Lange|L942.1}} **Lange L942.1** is a caliber by [[A. Lange & Söhne]]. [[Hand-wound]] [[manufacture]] movement with [[small seconds]], [[hacking seconds]] and [[power reserve indicator]] (called "up and down" at Lange). Used in the [[A. Lange & Söhne 1815 Up and Down|1815 Up and Down]] model. **Description:** * [[Hand-winding]] movement * [[Glucydur]] [[screw balance]], [[Nivarox]] [[balance spring]] with [[swan's neck fine regulation]] * [[Balance cock]] engraved by hand * Glashütte [[three-quarter plate]] in untreated [[Nickel silver]], bridges with [[Glashütte ribbing]] * Edges chamfered and polished **Functions:** * Hours, minutes, [[small seconds]] at 4 h * [[Hacking seconds]] * [[Power reserve indicator]] at 8 h **Data:** * ∅ 27.5. height ? mm * 21,600 A/h * 21 [[jewels]], including 6 in screwed gold [[chaton]]s * 164 components * Power reserve 45 hours {{tag>Movements Manual_winding_movements A._Lange_&_Söhne_calibres}}