A. Lange & Söhne 1815 Tourbillon

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

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

A. Lange & Söhne 1815 Tourbillon, platinum Ref. 730.094F
© 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.

In 2025, a limited edition of 50 pieces of the platinum model was released with a black dial made of enamelled white gold.

Reference:

730.025 platinum
730.032F red gold
730.079F platinum, white enamelled dial
730.094F platinum, black enamelled dial

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; white gold, white or black enamelled

Functions:

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

Bracelet:

Crocodile leather strap

Limited edition:

Platinum version: 100 pieces, Ref. 730.094F: 50 pieces