====== A. Lange & Söhne Tourbillon “Pour le Mérite” ====== {{wst>image_r|A_Lange_&_Söhne_Tourbillon_Pour_le_Merite|Tourbillon "Pour le Mérite"\\ © [[A. Lange & Söhne]]}} {{wst>image_r|Lange_L902.0|Calibre L902.0\\ © [[A. Lange & Söhne]]}} {{wst>image_r|A_Lange_&_Söhne_Tourbillon_Pour_le_Merite_Platin|Tourbillon "Pour le Mérite" ([[platinum]])\\ © [[A. Lange & Söhne]]}} Luxury watch with [[tourbillon]] by [[A. Lange & Söhne]], part of the [[A. Lange & Söhne Pour le Mérite|Pour le Mérite]] line. This watch, whose name refers to the highest German order of merit, exhibits a construction which was never realized in a [[wristwatch]] before the drive of the [[gear train]] via [[fusée-and-chain transmission]]. This complicated mechanism is used to optimize the precision and is visualized by a recess in the [[three-quarter plate]]. A further feature is the complexly constructed [[planetary gear]], which keeps the driving power of the watch constant during winding. The heart of the watch is a [[manual winding]] [[manufacture]] movement [[Lange L902.0|L902.0]]. The fascinating motion of the tourbillon bogie can be observed both on the dial side and through the [[sapphire crystal]] caseback. The watch case is made of [[gold]] or [[platinum]]. This model was produced in a limited edition from [[1994]] to [[1998]] (in [[platinum]] 50 pieces, in [[gold]] 150 pieces - including 15 in [[white gold]] and 15 in [[rose gold]]). **Reference:** * 701.001 ([[yellow gold]]), 701.005 ([[platinum]]) **Movement:** * [[Manual winding]] [[manufacture]] movement [[Lange L902.0|L902.0]] * [[Tourbillon]] with [[fusée-and-chain transmission]] and [[planetary gear]] for constant [[torque]] * [[Double barrel]] * 29 [[jewels]], 5 of which are in [[gold]] [[chaton]]s * Power reserve 36 hrs. **Case:** * [[Yellow gold]] 18ct * Ø 38.5 mm, height 10.0 mm * [[Sapphire crystal]] * Caseback solid [[gold]]/[[platinum]], secured with six screws with [[sapphire crystal]] caseback **Dial:** * Solid [[silver]], argenté, Arabic numerals and minute scale * Lancet hands, [[blued]] **Functions:** * Hours, minutes, [[small seconds]] * [[Power reserve indicator]] **Bracelet:** * Crocodile leather with [[tang-type buckle]] {{tag>Watch_models Watches_with_tourbillon A._Lange_&_Söhne_Pour_le_Mérite_models}}