740.055
- Model
- DATOGRAPH PERPETUAL TOURBILLON HONEYGOLD “Lumen”
- Case material
- 18-carat HONEYGOLD®
- Case size
- 41.5mm
- Movement
- Manual
- Calibre
- L952.4
- Market value band
- $150k – $600k
Marking 25 years since the original Datograph, the reference 740.055 "Lumen" unites a flyback chronograph, a perpetual calendar, and a tourbillon with a stop-seconds mechanism in a Honeygold case. Its smoked sapphire dial makes the movement visible while every display, including the moon phase, charges under UV light and glows in the dark. Lange limited the piece to 50 examples.
Key dates.
- Released as a 50-piece Honeygold "Lumen" edition marking the Datograph's 25th anniversary
- Manual caliber L952.4
- Case 41.5mm in 18k Honeygold
Before you ask.
What movement does the A. Lange & Söhne 740.055 use?
The A. Lange & Söhne 740.055 runs the L952.4, a manual movement.
How do I check a A. Lange & Söhne 740.055 with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.
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