The Lange 1 Tourbillon Perpetual Calendar was introduced in 2014. Similar to the Daymatic, it features a mirrored dial layout and automatic winding. Compared to said model it however adds the perpetual calendar, moonphase and tourbillon escapement – the latter only visible through the sapphire crystal caseback.Ref. 720.025 is a platinum case and is a limited edition of 100 pieces.
