Review A. Lange & Söhne 1815 Auf/Ab  –  “It should feel and sound like closing a Mercedes’ door.”

Avatar Ferdinand By Ferdinand Write a comment
Hearing the name A. Lange & Söhne you could assume this is a brand which is hundreds of years old. This is partially true. It’s a company with a rich history that disappeared for over 40 years and was only revived in 1990. But let’s rewind to the beginning.

The company was founded in 1845 by Ferdinand Adolph Lange as A. Lange & Cie. On the last day of World War II (May 8, 1945) the company buildings were destroyed by a Soviet air raid. In 1948 the company was nationalized and ceased to exist. This could have been the end of the brand and A. Lange & Söhne wasn’t heard of for another 42 years. After the German reunification in 1990 and collapse of the German Democratic Republic (GDR), individual businesses were possible again. Walter Lange, great-grandson of Ferdinand A. Lange, saw this as an opportunity to revive his family’s history. The brand was born again exactly 145 years after Ferdinand A. Lange founded the company. Walter Lange registered the company Lange Uhren GmbH on December 7, 1990 with an address of a former classmate in Glashütte, Saxony. Günther Blümlein, a former executive at IWC and Jaeger-LeCoultre, joined Walter Lange together with a team of 15 people to bring the brand back to life. In a riskful endeavour the first watches were developed and presented on October 24, 1994. 4 years of development hoping that somebody will want these watches – and the world did.

1994 presentation of A. Lange & Söhne watches
Presentation of the first A. Lange & Söhne watches in 1994. From left to right: Günther Blümlein, Walter Lange, Kurt Biedenkopf (Saxony’s prime minister). Picture by A. Lange & Söhne

Where does the 1815 collection come from?

The 1815 model collection currently features 13 timepieces with a total of 24 models. The name comes from the birth year of the founder Ferdinand Adolph Lange. The model name “Auf/Ab” is German for “Up/Down” and is used to indicate its power reserve indicator. “Auf” meaning it is fully wound, “Ab” meaning it has no power left. The 1815 was first introduced in 1997, discontinued in 2008, but brought back in 2013 with a redesign.

A. Lange & Söhne imperial patent no. 9349 for power reserve indicator
In 1879 A. Lange & Söhne received the imperial patent for a “device in pocket watches for recognising whether the watch is wound or unwound and for indicating how much time remains before it reaches the totally unwound state.” The first step for the Auf/Ab power reserve indicator in the watches we still see today. Picture by A. Lange & Söhne

A Teutonic watch that feels different

If you close your eyes and just hold a Lange watch, it will feel different to other watches. Its a bit heavier, the lugs straight, the bezel smoothly polished. The caseback deeply engraved. Watches from A. Lange & Söhne feel equally qualitative compared to any Swiss watch from the ranks of Patek Philippe. You can feel the “German-ness” in this watch: straightforward, confident, solid. Walter Lange has supposedly said that the watch should feel and sound like “the door of a Mercedes closing”.

A. Lange & Söhne 1815 Auf/Ab

The case is 39 mm in diameter and only 8.7 mm thick. The sapphire crystal is flat and so close to the dial it looks like there is no glass at all. The 5 and 7 numerals are slightly cut off by the power reserve indicator and small seconds, which gives the dial some dynamic. If you turn the watch on its head, you can even see a little face with a mustache. The dial is made from from solid sterling silver and has a matte finish. It’s called argenté (French for “silvery”).

A. Lange & Söhne 1815 Auf/Ab turned upside down so the dial shows a little face
Can you see the little face with the mustache?


One movement for every watch. You won’t find a movement used in multiple models at A. Lange & Söhne. Built into the 1815 Auf/Ab is the calibre L051.2, which is still based on a patent that Otto Lange developed in 1940, a grandson of Ferdinand A. Lange. A hand-wound movement bringing in 72 hours of power reserve and calmly ticking away at 3 Hz (21,600 A/h). Its only complication is a power reserve indicator which I find highly useful. Just the mechanism for showing the power reserve consists of 36 parts. The whole watch is put together out of 245 parts. The watch is assembled twice to make sure everything works the way it should and that it will last a lifetime. The balance cock is hand-engraved and each engraver has their own style for their floral ornaments. Not only the parts that are visible are finished to the highest degree, also the invisible parts. So if the top of a part is polished, the bottom will also have the same attention to detail. Because that’s what it takes to make one of the best watches in the world, no cutting corners. And what I really like: they do this with every watch. From a simple two-hander watch up to the tourbillons watches with exquisite Handwerkskunst-finishing.

A. Lange & Söhne calibre L051.2 used in the 1815 Auf/Ab
A. Lange & Söhne 1815 Auf/Ab view of the movement

Explanation of two features in this movement

To make this movement even more precise it features two noteworthy technical details: the screwed balance wheel and a swan-neck regulator.

Schematic drawing of a screwed balance wheel
The screwed balance wheel is equipped with multiple screws on the outside. When tightening or loosening the screws, the inertia of the wheel is changed and can therefore influence the rate of the watch. This allows for microadjustments making the watch even more precise.
Explanation of swan neck regulator on the A. Lange & Söhne movement L051.2
The swan-neck regulator gets its name from the shape of a steel spring that through turning a small screw allows to manipulate the rate of the watch (the balance wheel goes faster or slower). Since these watches involve a great portion of craftmanship, no watch is the same. Both the screwed balance wheel and the swan-neck regulator allow the watchmaker to fine-tune each movement so that it’s as precise as possible.

Another great detail is that the small seconds hand resets to zero when the watch doesn’t have any more power. The seconds hand could just stop in the middle of the minute track, but that wouldn’t be nice to look at. When your Lange runs out of power in the drawer, to me it seems like it’s saying “I’m done now, waiting for you to need me again.” The zero reset feature wouldn’t be necessary but it’s this fine detail of A. Lange & Söhne going over the top with engineering something like this that makes me like them so much. The watch seems unspectacular when viewed briefly until you look closer. And once you look even closer, there’s even more to discover.

How the movement sounds

I care a lot about how a watch feels and sounds when operated. A rattling rotor or grinding noise when winding the crown can put me off. Pulling the crown out, winding the movement with a rich ticking-sound, pushing the crown back in. Everything feels like the aforementioned Mercedes door being closed. Pure quality.

Hear how the calibre L051.2 sounds when winding by pressing the play button below.

Fits with many straps

The 1815 seems very dressed-up at first, but when removing the crocodile leather strap and putting it on a plain leather strap it suddenly looks a lot younger, fresher, playful. The blued hands and the small red highlights on the power reserve play well with almost every strap combination.

Strap combinations on a A. Lange & Söhne 1815 Auf/Ab
The 1815 works on many straps. Different mockups featuring leather straps from Delugs, Molequin and Asketica.
A. Lange & Söhne 1815 Auf/Ab on a blue strap

A watch to enjoy for yourself

A watch from A. Lange & Söhne never appears flashy. You can wear it everywhere. Many people don’t understand what’s fascinating about watches until you turn over a Lange watch and the finishing of the movement strikes you. That’s when many have their “Aha”-moment. You feel the weight of the gold and you’ll have to look twice to read the time. Not because the dial is unreadable, but because you’re amazed by how well the watch is finished. Time becomes an afterthought.

Technical data


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