Few dress watches reward close inspection like the A. Lange & Söhne 1815 Moon Phase, and few replicas hold up under it. This guide covers the details collectors check first — the moon disc, the case metal, the hand-engraved balance cock — so you can tell a genuine example from a fake at arm's length or under a loupe.
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Key Features to Compare
- Moon-phase disc: genuine examples use a deep blue disc with applied gold stars and two gold moons; most fakes print the stars flat and slightly off-register.
- Case metal: authentic cases are solid 18k gold or platinum, while replicas are typically gold-plated steel or brass and feel noticeably lighter.
- Hand-engraved balance cock: every genuine Lange balance cock is engraved by hand, so no two are identical; replica engraving is stamped or laser-cut and repeats exactly.
- Dial typography: the signature and numerals are crisp and faceted on real dials and soft or over-inked on replicas.
- Movement finishing: Glashütte ribbing, blued screws, and gold chatons are applied by hand on genuine calibers; replica finishing is cosmetic only.
- Caseback engraving: reference numbers, hallmarks, and the sapphire display back are crisply executed and correctly aligned on authentic watches.
- Moon-phase accuracy: the genuine mechanism is calculated to need correction only once every 122.6 years.
- Weight and warmth: solid gold has a heft and thermal feel that plated cases cannot imitate.
Materials and Specifications
The genuine 1815 Moon Phase measures roughly 37 to 38.5 mm depending on reference, is cased in solid 18k gold or platinum, and runs a manually wound Lange caliber driving a moon-phase disc computed for 122.6 years of accuracy. Sapphire crystals front and rear, a hand-stitched alligator strap, and a solid gold buckle complete the package. Replicas commonly substitute mineral glass, plated buckles, and machine-decorated movements that copy the look of the finish without the construction.
Fake 1815 Moon Phase Watch Specifications: A Buyer's Checklist
Shipping and Returns
Orders ship in protective packaging with tracking, and returns are accepted within the stated window on unworn pieces with films, tags, and seals intact. Because rules on replica and counterfeit goods differ by country, confirm your local import regulations before ordering.
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How can you tell a fake 1815 Moon Phase from a real one?
Start with the caseback: genuine watches show freehand balance-cock engraving, gold chatons, and crisp hallmarks, while fakes show repeated machine engraving and plated surfaces. Then check the moon disc — applied gold stars on a real piece versus printed stars on a replica.
Does the moon phase work on a replica?
It usually functions as a simple day-night or 29.5-day disc, but it is not computed to Lange's 122.6-year standard and often drifts or misaligns after setting.
Is a fake 1815 Moon Phase worth buying?
It depends on what you want: a replica offers the silhouette at a fraction of the cost, but it will not hold value, cannot be serviced by the manufacturer, and is treated as counterfeit merchandise in many jurisdictions.