A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar Platinum Ref. 720.025

The A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar Platinum 720.025 has a 41.9 mm platinum case, and measures 12.2 mm thick.

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.

Diameter: 41.9 mm
Thickness: 12.2 mm
Case: Platinum
Released: 2012
Movement: A. Lange & Söhne caliber L082.1

Specifications

Case and dimensions

Case diameter: 41.9 mm
Thickness: 12.2 mm
Lug width: 22 mm
Case shape: Round
Case material: Platinum
Crystal: Sapphire
Case back: Open

Dial

Dial name: Rhodium
Dial colour: Silver
Dial material: Silver
Indexes: Mixed
Hands: Alpha

Movement

Calibre: A. Lange & Söhne caliber L082.1
Movement maker: A. Lange & Söhne
Movement type: Automatic
Display: Analog
Power reserve: 50 h
Frequency: 21600 vph
Jewels: 76
Movement diameter: 34.1 mm
Complications: Additional 24 Hour Hand (adjustable), Date, Day, Hours, Leap Year, Minutes, Month, Moonphase, Perpetual Calendar, Small Seconds and Tourbillon Escapement