A. Lange & Söhne Richard Lange: Unpacking the Ingenious Split-Wheel Mechanism

aviya · 2024-03-02T05:20:40Z

Explore the A. Lange & Söhne Richard Lange in pink gold. Aviya details its precise Calibre L041.2 and the innovative split-wheel mechanism by Burkhard Geyer.

aviya

WPS member · A. Lange & Söhne forum

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In this insightful article, aviya, a discerning collector, delves into the technical artistry behind his A. Lange & Söhne Richard Lange in pink gold. He meticulously unpacks the watch's deceptively simple exterior to reveal a horological innovation that addresses a common challenge in indirect center seconds mechanisms. Aviya's detailed exploration of the proprietary split-wheel design, conceived by Burkhard Geyer, offers a rare glimpse into Lange's unwavering commitment to precision and mechanical integrity, even in subtle details.

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This is the third of the four Lange watches in my collection: the Richard Lange in pink gold.

A very precise (0.1 spd, 0.0 beat error, 347 amplitude at full wind, with Lange's proprietary balance spring) and deceptively simple three-hand watch. I say that as details abound - front and back.

On the front, the seconds and sub-seconds markers (matched to the frequency of the movement), and small red numerals at the four cardinals, frame the dial. The dial-step is welcome and perfectly traces the brand marque - a ubiquitous feature of current generation 1815 dials and the original Richard Lange dial here. And that blued sweep second hand is an endless delight on-wrist - I most often read it being described as "mesmerising" and I can't think of a better word for it than that. Unlike Lange's chronograph hand - which looks the same - this hand is constantly in motion and its perpetual animation is a big part of the charm of this watch. And, there's a watchmaking story behind that...

Lange movement designer, Burkhard Geyer - son of company stalwart Helmut - designed Calibre L041.2 in the Richard Lange. But, when doing so, he encountered a problem: flutter of the sweep seconds hand. As an indirect centre seconds hand, it was already a technical compromise with the train needing to be brought back from the outside to the centre. In addition, the hand was exceptionally long, and heavy. Burkhard initially solved the problem with a reasonably traditional braking mechanism, but this had three drawbacks: 1.) it introduced drag on the balance wheel's amplitude, 2.) a severe shock would cause the brake to release momentarily and the hand to jump, and, 3.) he couldn't sleep at night...

So, Burkhard designed a laterally-split wheel in the middle of the indirect centre seconds gear train and tensioned the two halves of the wheel against themselves with a curved (as opposed to coiled) spring. This took him many months to perfect and worked by also introducing opposing tension to the wheels on either side and therefore had the effect of persistently eliminating play in the train (and thus flutter of the seconds hand) whilst not impacting balance amplitude. Brilliant!

I've also attached a photo from Lange's Annual Book, 2006 edition, which shows a close-up of the split wheels - I obviously credit Lange Uhren for the original photo. Unfortunately, the photo doesn't show the tensioning spring between the wheels but - as an owner - with a 15x loupe with the right angle and light, you can see it as the wheels turn. In order to bear the additional load and secure the fastening of the spring, you'll note that these two wheels are made of steel - you'll see that on regular photos of this movement, except for some really early examples.

Now, unlike the two Pour Le Mérite models within the Richard Lange family (and cheers to Ivan5 and any other owners here of those astonishing pieces!), we're obviously not talking a horological "tour-de-force" with this mechanism like we are with a fusée-and-chain transmission - but it's still delightfully more than might be expected in such a simple watch and it speaks richly to Lange's passion. And, like a tourbillon hidden away on the reverse side of a watch, it's just knowing it's there that counts...

With my continued best wishes, aviya.

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

Key Points from the Discussion

The Richard Lange reference 232.032 in pink gold is a highly cherished model among collectors, with some regretting parting with the platinum reference 232.025 due to its 'cold' feel despite its aesthetic appeal.
The Richard Lange's innovative technical features, such as the flutter-eliminating split-wheel mechanism, add significant appeal for collectors considering the model, often outweighing concerns about its size and heft.
Despite its understated aesthetic, the Richard Lange is recognized for its 'total class,' embodying a sophisticated elegance that resonates with collectors.

The Discussion

amanico

Mar 2, 2024

Superb post. Right you are on the Richard Lange. An excellent watch, with a superb movement. I have the platinum in my mind...

A tad cold, but total class.

aviya

Mar 3, 2024

Thank you amanico. Each configuration has its own charm.

blau

Mar 2, 2024

Thank you!

I keep thinking I need a Richard Lange in my life, but I keep holding back because of the size and heft. This is one more excellent reason on the 'need' side of the ledger.

aviya

Mar 3, 2024

Thank you blau. On-wrist, like I have, you’ll likely find the size and heft are features - not flaws.

Chronometer (aka yacomino)

Mar 2, 2024

It is a phenomenal watch indeed. I tried in the flesh just before the holidays and it was live at first sight

aviya

Mar 3, 2024

Indeed yacomino. It is a piece that is next-level in the metal, compared to photos.

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A. Lange & Söhne Richard Lange: Unpacking the Ingenious Split-Wheel Mechanism

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

Specifications

Key Points from the Discussion

Continue the conversation

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