A. Lange & Söhne Saxonia Rotor Material Explained
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A. Lange & Söhne Saxonia Rotor Material Explained

By TheWindingStem · Jan 23, 2019 · 18 replies
TheWindingStem
WPS member · A. Lange & Söhne forum
18 replies8088 views2 photos
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TheWindingStem, a dedicated A. Lange & Söhne collector, addresses a common question regarding the gold-plated rotors in the Saxonia line. His conversation with Anthony De Haas, Director of Product Development at Lange, reveals the technical rationale behind this design choice, dispelling notions of cost-cutting and reinforcing the brand's commitment to efficiency and performance.

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Hello,

as a dedicated Lange fan and collector i always want the brand to be the best it could be as their successes and achievements become a source of pride for me. One of the things that bothered me a lot was the fact that the gorgeous Saxonia Moonphase central rotor is, in fact, not made of solid gold- this is the case with every Saxonia model with a rotor- with very little information as to why. Clearly the first thought to come to mind is Lange is cutting costs to widen their profit margin. 

This SIHH2019 i had the opportunity to speak to Anthony De Haas, the Director of Product Development at Lange, and ask why the rotor is not gold. The answer i got made lots of sense and reinforced my belief in the brand. The reason gold was not chosen was their desire to keep the watch as slim as possible with the most efficient rotor to wind the power reserve- gold is elastic too and prone to impacts by shocks. Therefore another solution was found. The metal chosen is a base metal that addresses thickness and elasticity with better resistance to shocks.

The amount of gold in a rotor is really insignificant in terms of costs and the decision to not use gold was entirely technical, also there is a platinum mass on the outer edge to make the winding even more efficient.

Hope this answers the question for some of you whom i spoke with regarding this topic. 






Image courtesy of Deployant.


About the A. Lange and Söhne Emil Lange Ref. 1815

The A. Lange & Söhne 1815 reference 206.032, introduced in 1999, is a notable example of the brand's commitment to traditional watchmaking principles. This model is part of the 1815 collection, which pays homage to the birth year of Ferdinand Adolph Lange and emphasizes classic design elements such as Arabic numerals and blued hands, drawing inspiration from historical Lange pocket watches. It represents a more understated and purist aesthetic compared to some of the brand's more complex offerings, focusing on fundamental horological excellence.

This particular reference features an 18k rose gold case measuring 36mm in diameter and 7.5mm in thickness. It houses the manually wound L941.1 caliber, visible through a sapphire crystal case back. The movement provides a power reserve of 45 hours. The watch is fitted with a sapphire crystal on the front, protecting a solid silver dial. Water resistance is rated at 30 meters, suitable for everyday wear but not for immersion.

The 1815 206.032 appeals to collectors who appreciate classical proportions and a focus on fundamental watchmaking without excessive complications. Its smaller case size reflects a more traditional approach to men's wristwatches, making it a desirable piece for those seeking a discreet yet highly refined timepiece. The combination of rose gold and a silver dial offers a warm and legible presentation, consistent with the collection's historical inspirations.

Specifications

Caliber
L941.1
Case
18k rose gold
Diameter
36mm
Dial
Silver
Water Resist.
30m
Crystal
Sapphire

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TH
TheWindingStem
Jan 23, 2019

i forgot to mention that!

CO
COUNT DE MONET
Jan 23, 2019

I can't tell you exactly when Lange did this first, but it was also in a Saxonia, simple auto without date, maybe five years ago. I would not say "spoils" the watch but still a strange thing in a Lange.

TH
TheWindingStem
Jan 23, 2019

Saxonia dual time, Saxonia automatic and Saxonia outsize date all have the same gold plated rotor. However, the choice to use a metal other than gold is not unique to Lange as VC for example use Tungsten and im sure other brands did or do so. I think the choice to use a more efficient metal far outweighs the desire to have gold everything for purely aesthetics reasons or to give the impression of luxury.

CO
COUNT DE MONET
Jan 23, 2019

As you wrote in your post.

CR
CR
Jan 23, 2019

... at that time, per Peter Chong, which I have edited for clarity: "Regarding the rotor in the new self-winding movement: The motivation for the replacement of the 21k rotor with one gold plated is not an exercise in cost saving, otherwise probably the platinum would have been substituted as well. And as has been pointed out, the amount of gold used is so small, the cost differential with the base metal used is inconsequential. [It] is due to the need for rigidity. Gold, especially 21k gold use

TH
TheWindingStem
Jan 23, 2019

thank you very much! I will be sharing this quiet a lot.

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