The A. Lange & Söhne 1815 is a model that pays homage to the birth year of Ferdinand A. Lange, the company's founder. It is distinguished by its classic design, which is inspired by pocket watches and reflects the traditional values of the brand. The manually wound movement, visible through the sapphire crystal case back, and the design characteristics such as the Arabic numerals and railway-track minute scale, encapsulate the spirit of the early Lange pocket watches. This model is available in various case materials, including gold and platinum.