A. Lange & Sohne LANGE 1 TOURBILLON PERPETUAL CALENDAR HANDWERKSKUNST 41.9 mm Silver Dial Platinum Leather Strap 720.048FE / LSLS7202AN

This model was introduced in 2013. The solid white-gold dial is hand-engraved with relief and tremblage techniques. The blue numerals of the outsize date are painted by hand. The hands are made of rhodiumed gold.