A. Lange & Söhne Tourbograph Perpetual “Pour le Mérite”

Tourbograph Perpetual “Pour le Mérite”
© A. Lange & Söhne

Tourbograph Perpetual “Pour le Mérite” is a wristwatch by A. Lange & Söhne.

2017 presented exclusive luxury model and the fifth masterpiece of the “Pour le Mérite” series: it combines the complications rattrapante chronograph, perpetual calendar and tourbillon, encased in a platinum case. Thus, it is the first minute tourbillon in wristwatch format driven by chain and fusee with perpetual calendar and additional rattrapante chronograph.

According to the style (numerals, central display of hour and minute), this watch belongs to the 1815 series.

Reference:

706.025 platinum

Movement:

Manual winding manufacture movement L133.1, 21.600 A/h
Chronograph with rattrapante mechanism, column-wheel control
Tourbillon
Fusée-and-chain transmission
Plates and bridges in untreated nickel silver
NIVAROX-1 flat hairspring from in-house production
Glucydur balance
52 jewels, including 2 diamonds; 6 gold chatons, including 2 screwed
1319 components
Power reserve 36 hours

Case:

Platinum
Ø 43 mm, height 16.6 mm
Sapphire crystal
Caseback with sapphire crystal sighting window

Dial:

Solid silver, argenté, arabic numerals and minute track
Lancet hands blued

Functions:

Hours, minutes, small seconds with hacking seconds
Chronograph seconds, 30-minutes counter, rattrapante hands
Flyback function
Perpetual calendar with date, day of week, month, leap year, moon phase indication

Bracelet:

Crocodile leather strap

Limited edition:

50 pieces