====== A. Lange & Söhne 1815 Up and Down ====== {{wst>image_r|A_Lange_&_Söhne_Lange_1815_Auf_und_Ab|A. Lange & Söhne 1815 Up/Down}} {{wst>image_r|A_Lange_&_Söhne_Lange_1815_Auf_und_Ab_Platin|A. Lange & Söhne 1815 Up/Down ([[platinum]])}} {{wst>image_r|A_Lange_&_Söhne_Lange_1815_Auf_und_Ab_Rotgold|A. Lange & Söhne 1815 Up/Down ([[red gold]])}} {{wst>image_cr|Lange|L942.1}} **A. Lange & Söhne 1815 Up/Down** is a luxury watch by [[A. Lange & Söhne]] Expensive wristwatch in the usual sublime quality of this manufacturer [[Manual winding]] [[manufacture]] movement Calibre [[Lange L942]] with hours and minutes indication, [[small second]] at the "4", [[hacking seconds]], [[power reserve indicator]] (Lange calls it "up and down" indication) at the "8", dial in solid silver, gold case in two variants or [[platinum]]. The name of the watch refers to the birth of the brand's founder [[Ferdinand Adolph Lange]], who was born on 18 February [[1815]] in Dresden. **Reference:** * 221.021 ([[yellow gold]]), 221.025 ([[platinum]]), 221.032 ([[red gold]]) **Movement:** * [[Manual winding]] movement [[Lange L942|L942.1]], 21,600 A/h * 21 [[jewels]], including 6 in screwed gold [[chaton]]s * [[Glucydur]] [[screwed balance]], [[Nivarox hairspring]] with [[swan-neck precision regulator]] * Glashütte [[three-quarter plate]], movement bridges with [[Glashütte ribbing]] * Power reserve 45 hours **Case:** * 18ct [[yellow gold]] / [[red gold]] / [[platinum]] * Ø 35.9 mm, height 7.5 mm * [[Sapphire crystal]] * Screwed down caseback with six screws and with [[sapphire crystal]] **Dial:** * Dial in solid silver, Arabic numerals and minute scale * Lancet hands in [[blued steel]] **Functions:** * Hours, minutes, [[small seconds]] at the 4 * [[Power reserve]] indicator at the 8 **Bracelet:** * Crocodile leather strap with [[tang-type buckle]] {{tag>Watch_models A._Lange_&_Söhne_models A._Lange_&_Söhne_1815_models}}