A. Lange & Söhne Lange 1, 151.005, First Series, Platinum

Introduced in 1994, this reference 151.005 is one of the earliest Lange 1 watches ever produced, bringing together a range of rare and distinctive features. It combines a platinum case, integrated bracelet, and a solid platinum caseback. It is understood that the latter was only available on pieces produced between 1994 and 1997, before A. Lange & Söhne fully transitioned to sapphire display casebacks.