About the A. Lange & Söhne Datograph Perpetual Tourbillon
A. Lange & Söhne revived the Saxon watchmaking tradition after German reunification, and the Datograph name has long stood as the definitive expression of the brand's approach to the flyback chronograph with outsize date display. The Datograph Perpetual Tourbillon elevates that foundation by integrating a perpetual calendar that accounts for varying month lengths and a tourbillon to counteract gravitational error, all within a case sized for the Saxonia family's characteristically elegant proportions. The Honeygold Lumen reference 740.055FE is among the most distinctive, featuring Lange's proprietary Honeygold alloy and a luminous dial treatment that reveals the movement's architecture in low light, making it a standout among modern limited grand complications. Across white gold 740.056FE and platinum 740.036FE, the collection demonstrates how material choice shapes the visual and tactile character of an otherwise shared mechanical architecture.
What to Look For
Buyers comparing references within this collection should focus on case material as the primary differentiator, since white gold offers a brighter, slightly warmer tone while platinum delivers greater density and a cooler grey presence that many collectors prize for its rarity and wrist feel. The Honeygold Lumen 740.055FE commands particular attention for its exclusivity, as Honeygold is a proprietary A. Lange & Söhne alloy not available elsewhere, and the Lumen designation signals a dial that interacts with light in a way no standard variant replicates, factors that historically support stronger long-term value retention.
Frequently Asked Questions
What complications does the Datograph Perpetual Tourbillon include?
The Datograph Perpetual Tourbillon combines three major complications in one movement: a flyback chronograph with Lange's signature outsize date display, a perpetual calendar that automatically accounts for month lengths including leap years, and a tourbillon regulator. This triple-complication architecture places it among the most mechanically complex watches A. Lange & Söhne produces.
What is the difference between the white gold, platinum, and Honeygold Lumen references?
References 740.056FE in white gold and 740.036FE in platinum share the same movement and case architecture but differ in material density, tone, and prestige, with platinum generally considered rarer and more collectible. The 740.055FE Honeygold Lumen is set apart by its use of Lange's proprietary Honeygold alloy and a special luminous dial that reveals movement details in darkness, making it the most visually distinctive and limited of the three.
Are the Datograph Perpetual Tourbillon watches available for sale at Bizak and Co. authenticated?
Yes, every Datograph Perpetual Tourbillon listed at Bizak and Co. is fully authenticated before sale, with provenance and condition verified by our specialists. We carry examples including 740.056FE, 740.036FE, and 740.055FE and ship securely, so buyers can purchase with confidence whether they are adding to an existing Lange collection or acquiring their first grand complication.
Buy, trade, or sell. Contact Bizak & Co. for pricing and availability on any reference in this collection.
