Ref. 720.035FE — Lange 1 Tourbillon Perpetual Calendar “Lumen” in 50-piece Platinum

Originally reported by SJX Watches. This article is a curated summary of their original coverage.

50 pieces. Ref. 720.035FE. Platinum case.

This is the Lange 1 Tourbillon Perpetual Calendar “Lumen” in platinum — a 50-piece limited run that applies A. Lange & Söhne’s semi‑transparent Lumen treatment to one of its most complicated models.

The Lumen treatment, stated plainly

A. Lange & Söhne’s Lumen models feature a smoked sapphire crystal dial. The approach makes the dial semi‑transparent while retaining the model’s legibility and layered look. Here, Lange applies that visual language to a top‑tier complication rather than a simpler three‑hand piece.

Complications and intent

The watch combines a tourbillon with a perpetual calendar within the Lange 1 layout. That pairing positions the ref. 720.035FE as an elite, collector‑oriented offering — mechanically complex and visually distinct thanks to the Lumen dial.

Materials and run

The case material is platinum and the production run is strictly 50 pieces. Those two facts define the watch’s immediate market identity: rare, high‑end, and finished in the metal most collectors associate with reserve and weight.

What this means for buyers

If you want the Lumen aesthetic on a fully fledged perpetual calendar plus tourbillon, this is the explicit offering from Lange. Expect the combination of limited run and platinum to be the deciding factor for collectors rather than the visual novelty alone.

Open question: will the Lumen treatment on flagship complications reshape demand for Lange limited editions, or remain a niche preference among Lumen devotees?

Originally reported by SJX Watches. This article is a curated summary of their original coverage.

Tags: A. Lange & Söhne, tourbillon, perpetual-calendar, platinum