A. Lange & Söhne

One of my most memorable experiences from SIHH 2008 was the A Lange & Söhne press presentation. Held in a large square room onto whose white walls were projected an extraordinarily detailed and photorealistic 360º recreation of late 18th-century Dresden, ...  

your nice shots, concise prose combine to make your report a refreshing one. Now that we are a few days away from the actual close of SIHH 2010 as well as the dizzying show of watches from all brands who participated, have to agree with your statement tha... 

Especially some of the movement pictures are very nice. Oliver

I hope you get to attend SIHH every year to take these shots for us! And thanks for the very clear and beautiful macros of my 2 favourites this year, the Phantom and the Referenzuhr! Cheers Stephen

Lange's variable-inertia balances are indeed free-sprung - what looks like a swan-neck adjuster is in fact a beat adjustment mechanism. You'll notice if you compare this mechanism to Lange watches with the traditional screwed balance that the two adjuster... 

...and I can see now that they are indeed different. But what, prey, is a beat adjustment mechanism? Isn't that the same thing as a regulator? If the balance is free-sprung, how does the new mechanism adjust the beat rate? Cheers Tony P

the beat adjuster simply sets the impulse pin relative to the pallet fork, while a regulator effectively lengthens and shortens the balance spring in order to control rate. A free-sprung watch achieves its rate through weights on the balance wheel, and do... 

I emailed Lange to ask them to resolve this issue and they replied: "Our model RICHARD LANGE has a free-sprung system (non index balance system). Therefore, the swan neck fine regulation is not used for the regulation of the spring's length like in the tr... 

Maybe someone else on the forum can elaborate further as to the exact nature of a "beat adjustment mechanism". My guess is that maybe this system fine-tunes beat rate (ie, makes the escapement oscillate slightly slower or faster) via some kind of tensioni... 

Most interesting and enjoyable indeed. Well done and thanks for sharing.

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Cheers, -- Richard.

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Interesting text, and great pictures. Is Lange getting a 2d Breathe? From what we saw in 2009 and 2010, I would say YES. The Zeitwerk Luminous is so audacious that it may appear like a Revolution for this Brand. It was a great surprise. And for those who ... 

I see the new chrono, I like it more & more..... Thanks for posting this photos.... Cheers