Lange 1815 Moonphase 165 Years – Homage to F. A. Lange Collection/en

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Lange 1815 Moonphase
165 Years – Homage to F. A. Lange Collection

1815 MOONPHASE from the anniversary collection 165 Years – Homage to F. A. Lange
Reference 212.050

The 1815 MOONPHASE epitomises Lange’s unending quest for the ultimate in precision. No effort was spared to calculate an extremely accurate moon-phase train for this watch. Thanks to a suite of wheels with special transmission ratios, its error per lunar month is a nearly infinitesimal 6.61 seconds. It takes 1,058 years for this error to add up to a deviation of one day relative to the actual lunar cycle. Had such a timepiece existed in the year 952 – during the lifetime of Otto I the Great – and had it run without interruption since then, its moon-phase display would have to be corrected for the first time this year.

Among collectors, the 1999 limited edition pieces of the 1815 MOONPHASE in pink gold and platinum with a black dial rank among the most sought-after Lange timepieces. Their hallmark is an artistic rendering of the “Big Dipper”, probably the best-known constellation, on the dial. At watch auctions, well-maintained exemplars of this coveted treasure sometimes fetch more than three times the original price. The value of the 1815 MOONPHASE “Homage to F. A. Lange” could follow a similar trend: its edition is limited to 265 watches world-wide.


Reference:
212.050

Movement:

Lange manufacture calibre L943.2, manually wound, crafted to the most exacting Lange quality standards and largely decorated and assembled by hand
precision-adjusted in five positions
three-quarter plate made of untreated German silver, with sunburst finish
balance cock in honey-coloured gold, engraved by hand
Diameter: 27.5 millimetres; height: 3.9 millimetres

No. of movement parts:

220

No. of jewels:

26

Escapement:

Lever escapement

Oscillation system:

Shock-resistant glucydur screw balance, superior-quality balance spring manufactured in-house, frequency 21,600 semi-oscillations per hour, whiplash-spring beat adjustment system

Power reserve:

45 hours when fully wound

Functions:

Time indicated in hours, minutes, and subsidiary seconds with stop seconds
Moon-phase display

Operating elements:

Crown for winding the watch and setting the time
push piece for the moon at 10 o’clock

Case:

Diameter: 37.4 millimetres; height: 8.9 millimetres
Honey-coloured gold
Glass and caseback: Antireflection-coated sapphire crystal

Dial:

Solid gold, argenté, guilloched; lunar disc in solid honey-coloured gold

Hands:

Blued steel

Strap:

Hand-stitched, red-brown crocodile strap with Lange prong buckle in solid honey-coloured gold

Edition:

265 watches