A. Lange & Söhne 1815 Tourbillon

A. Lange & Söhne 1815 Tourbillon, red gold
© A. Lange & Söhne

A. Lange & Söhne 1815 Tourbillon, platinum
© A. Lange & Söhne

1815 Tourbillon is a luxury wristwatch by A. Lange & Söhne.

Presented in 2014, this model in the “1815” series not only features the complication of a tourbillon and the addition of a stop-second invented and patented by Lange, but also adds a zero-reset function in which the second hand jumps back to zero when the crown is pulled. This allows the watch to be accurately set and restarted to the second.

Reference:

730.025 platinum
730.032 red gold

Movement:

Manual winding manufacture movement L102.1, 21.600 A/h
Precision adjustment: screw balance
Tourbillon with zero-reset
Glashütte three-quarter plate in untreated nickel silver
NIVAROX-1 flat hairspring from in-house production
Glucydur balance
20 jewels, including 5 in screwed gold chatons, 1 diamond capstone
Diameter: 32.6 mm; height: 6.6 mm
262 components
Power reserve 72 hours

Case:

18 ct red gold or platinum
Ø 39.5 mm, height 11.1 mm
Sapphire crystal
Caseback with sapphire crystal sighting window

Dial:

Red gold version: solid silver, argenté, hands in blued steel
Platinum version: copper enameled, hands in blued steel

Functions:

Hours, minutes
Small seconds via tourbillon at 6 h
Zero-Reset

Bracelet:

Crocodile leather strap

Limited edition:

Platinum version: 100 pieces