Crowning finale of the anniversary collection
In a 25-watch limited edition in white gold, the LANGE 1 TOURBILLON “25th Anniversary” completes the ten-part special series that celebrates the 25th anniversary of the LANGE 1. The 38.5-millimetre white-gold case sets the stage for a solid-silver, argenté-coloured dial that contrasts with the blued steel hands. Suspended between two diamond endstones, the one-minute tourbillon features a stop-seconds mechanism. The patented system is clearly visible in a generous aperture in the dial and through the glass units disc of the outsize date.
![](https://img.alange-soehne.com/cinemascope-1/3038a25f8a36a019e5513f71444bf2c329e2f241.jpg)
Movement L961.4
A glance through the sapphire-crystal caseback also reveals superb craftsmanship, down to the very last detail. Lavish engravings decorate the tourbillon bridge as well as the intermediate-wheel cock. The colour concept of the dial is echoed in the blue-filled recesses of the engraving. The unifying anniversary collection signature, a reliefed depiction of the outsize date, is located on the intermediate-wheel cock.
Explore further
![Outsize date](https://img.alange-soehne.com/page-push-responsive-1/40101c864e7d51f4f2e0a5f743a23ade4806a009.jpg)
![Finishing and engraving](https://img.alange-soehne.com/page-push-responsive-1/888200dda1b4e5423e9159d6cb214fe56fb95881.jpg)
![25th Anniversary editions](https://img.alange-soehne.com/page-push-responsive-1/78bca01822882795206cecba49d0b0f342185aed.jpg)
Models of the LANGE 1 family
How can we be of service?
Whether you are in search of a specific model, have questions out of interest or need a service request for your timepiece – we are delighted to help you. We are at your service by phone, email or in one of our boutiques.
![The A. Lange & Söhne salon in Zurich](https://img.alange-soehne.com/text-image-2/ecfc8537a6df3fe43c9a926f3d3695f6ca4290a7.jpg)