A. Lange & Söhne timepieces are utterly extraordinary in their precision and attention to detail. Every significant part of a Lange movement is produced in its Glashütte manufacture. This includes the balance spring, the pulsating heart of a mechanical timepiece, a part which almost every other watchmaker has to buy from third-parties. This intensive focus on craftsmanship means only a relatively small number of Lange watches can be manufactured each year. Buy an A. Lange & Sohne watch at discounted prices from Prestigewatch US. Large selection in stock. Enjoy 5 star service and Free Shipping!