The fake Datograph Lumen copies one of the most talked-about A. Lange & Söhne designs of the past decade: a chronograph whose dial goes semi-transparent so the luminous outsize date and counters glow through the surface. If you are shopping for one, the short answer is that quality varies enormously by factory, and the luminous date is the single detail that separates a convincing build from an obvious miss. Here is what to check before you order.
Key Features
- 41 mm case with stepped lugs and angled chronograph pushers matching the original layout
- Semi-translucent dial with a luminous outer ring and glowing hour markers
- Luminous outsize date at 12 o'clock built from two stacked glow discs
- Flyback chronograph with a 30-minute counter and instant-jump minute display
- Scratch-resistant sapphire crystal, usually with an inner anti-reflective coating
- Hand-wound or automatic movement depending on the version you choose
- Alligator-grain leather strap with a signed pin buckle
- Display caseback showing decorated bridges and an engraved movement plate
Most examples use a 316L stainless steel case with rhodium or white-gold-tone plating, measuring roughly 41 mm across and 13 mm thick, with a sapphire front crystal and a display back. The dial is the technical centerpiece: the luminous compound sits on the outer ring and across the two date discs, so the numerals light up after a few seconds under a lamp. Movement options run from a decorated hand-wound chronograph to a Seagull-based automatic, and the hand-wound versions generally feel closer to the real thing when you wind and reset the chronograph. Water resistance is normally listed as splash-proof only, so keep it away from swimming and showers.
What does the luminous date look like in person?
In daylight the date discs read as frosted grey; in the dark the numerals glow a soft green-blue through the dial. Cheaper builds glow faintly or unevenly, while better ones light both digits at the same brightness.
How close is it to the genuine Datograph Lumen?
From arm's length the proportions and the glow effect are convincing. Up close the giveaway is movement finishing and the crispness of the printed text, so judge it on dial printing and date alignment rather than the engraving on the back.
Is the chronograph actually functional?
On most mid-range and higher versions, yes: the pushers start, stop and reset the sweep hand, and the minute counter advances. Test all three functions as soon as the parcel arrives.
Ordering is straightforward: watches ship in plain, unbranded packaging with tracking, usually within a few business days, and most sellers offer a short inspection window after delivery. If the luminous date does not glow evenly or the chronograph misbehaves, request a replacement or a return before that window closes.