A. Lange & Söhne 1815 Rattrapante Perpetual Calendar Platinum Ref. 421.025

The A. Lange & Söhne 1815 Rattrapante Perpetual Calendar Platinum 421.025 has a 41.9 mm platinum case, measures 14.7 mm thick, and is water resistant to 30 metres.

The horological masterpiece that is the 1815 Rattrapante Perpetual Calendar was introduced in 2013. It features both a perpetual calendar as well as a split-seconds chronograph. Ref. 421.025 has a platinum case.

Diameter: 41.9 mm
Thickness: 14.7 mm
Water resistance: 30 m
Case: Platinum
Released: 2013
Movement: A. Lange & Söhne caliber L101.1

Specifications

Case and dimensions

Case diameter: 41.9 mm
Thickness: 14.7 mm
Lug width: 20 mm
Case shape: Round
Case material: Platinum
Crystal: Sapphire
Case back: Open
Water resistance: 30 m

Dial

Dial colour: Silver
Dial material: Silver
Finish: Matte
Indexes: Arabic Numerals
Hands: Alpha

Movement

Calibre: A. Lange & Söhne caliber L101.1
Movement maker: A. Lange & Söhne
Movement type: Handwound
Display: Analog
Power reserve: 42 h
Frequency: 21600 vph
Jewels: 43
Movement diameter: 32.6 mm
Complications: Chronograph, Column wheel, Date, Day, Hours, Leap Year, Minutes, Month, Moonphase, Perpetual Calendar, Power Reserve Indicator, Rattrapante and Small Seconds