A sketch of the Caliber L102.1
tourbillon and its stop-
seconds mechanism.
The manually wound A.Lange &
Söhne manufacture calibre L102.1.
and over again. Absolute cleanliness is paramount because the inclusion of
even the smallest particle of dust or dirt would mar the flawless surface.”
As the thirty-part process requires multiple layers of enamel and utilizes
a copper base rather than a solid silver dial, the case of the 1815 Tourbillon
measures 11.1mm high, exactly 0.2mm higher than previous editions.
To anyone not familiar with the enameling process, the watch’s large
aperture at 6 o’clock is perhaps the only dial-side clear indication of the
complexity within this watch. Within the opening you’ll find the one-minute
tourbillon, suspended beneath an ethereal black polished bridge.
44 | INTERNATIONAL WATCH | FALL 2018
By turning the watch over you can immediately see the full extent of the
A. Lange & Söhne’s mechanical precision. There, in all its glory, is a beauti-
fully finished manufacture caliber L102.1, visible through the sapphire-crystal
caseback. The movement is crowned by a diamond end stone in a screwed
gold chaton on the fourth-wheel bridge that has been adorned with freehand
engraving.
The 39.5mm platinum-cased 1815 Tourbillon is equipped with a black
hand-stitched alligator leather strap secured with a solid-platinum deployant
buckle. Price: $197,200