Brand Guides / A. Lange & Söhne
Reviewed by the Fine Watch Guide team · October 2026
A. Lange & Söhne is the rare manufacture whose story includes disappearing entirely. Ferdinand Adolph Lange founded it in Glashütte in 1845; it was expropriated after the Second World War; and Walter Lange, his great-grandson, brought the name back in 1990. The watches it has made since 1994 are some of the most admired in the world, and the way they're built shapes how they should be serviced.
Turn a Lange over and the movement looks unlike anything from Switzerland. Most use a three-quarter plate made of untreated German silver, an alloy of copper, nickel and zinc that develops a warm patina over time. The balance cock is engraved by hand, so no two are identical, and gold chatons held by blued screws surround many of the jewels.
Lange also assembles its movements twice. After the first assembly and adjustment, the watch is taken apart again, the parts are cleaned and finished, and it's reassembled for good. That's why Lange movements look the way they do, and it's also a hint about servicing: these are watches that expect to be taken apart carefully and put back together without a mark.
Untreated German silver marks easily. A fingerprint left on a plate during service can etch into the surface over time, and a slipped screwdriver leaves a scratch that can't be hidden. A watchmaker who works on Lange watches handles the plates with finger cots and the right tooling, and won't try to polish out a mark in a way that changes the finish.
This is the main reason to be choosy about who opens a Lange. Ask a prospective watchmaker how they handle German silver, whether they've serviced your model before, and whether they can source genuine parts. If the answers are vague, send it to the brand.
For most Lange owners the default is factory service, through the brand's own service centers. Lange is a relatively small manufacture with a modest output, its movements are mostly specific to the brand, and outside access to parts is limited. That puts many independents in a difficult position, however skilled they are.
There are independent watchmakers with real Lange experience, often people who trained at or worked with the brand, and for an out-of-warranty time-only watch they can be an excellent choice. For anything with a complication, particularly the chronographs and the Zeitwerk with its jumping numerals, go to the brand or a specialist the brand recognizes.
Lange's modern history is short and well documented, which helps buyers. Have a specialist open the caseback and confirm that the movement matches the reference, that the engraved balance cock and the German silver plate show no signs of careless service, and that the serial numbers agree with the papers.
Look at the dial and hands under magnification too. Lange dials are often solid silver or gold with applied markers, and damage around the outsize date windows on a Lange 1 or Datograph is worth spotting before you buy. A full set with papers and the service history is the cleanest way to own one.
Most Lange watches are dress or formal pieces with modest water resistance, so treat them accordingly. Many models are manual-wind; wind them at a regular time each day until you feel resistance, and stop there. Don't set the date or calendar during the hours around midnight when the mechanism is engaged, unless your manual says that's safe.
Keep the watch away from magnets, have accuracy checked every couple of years, and follow the brand's recommended service interval for your movement. Keep every receipt with the box. On a watch that collectors prize partly for its condition, a complete history is worth real money.
Lange's catalog is smaller than most Swiss manufactures', which makes the choice easier to reason about. The Lange 1 family carries the off-center dial and outsize date. The Saxonia line is the classical, round, often time-only side of the brand. The 1815 collection nods to the founder's birth year with railway-track minute scales and Arabic numerals. The Datograph and Zeitwerk sit at the technical end, one a flyback chronograph and the other a mechanical digital display.
That structure matters for service as much as for taste. A time-only Saxonia or 1815 is the Lange most likely to be a good fit for an experienced independent once it's out of warranty. A Datograph, a Zeitwerk or any perpetual calendar should go back to the brand unless you know a watchmaker who services those specific movements, because the parts are proprietary and the adjustment is specialized.
Model-by-model guides to buying, servicing, and what to watch.
The Lange 1 debuted in 1994 with the modern company's first collection, and its off-center, overlapping dial layout and outsize date made it one of the most recognized watches of its era.
The Saxonia is Lange's most classical line: round cases, centered layouts and the same German silver movement finishing as the rest of the range, often as the entry point to the brand.
The Datograph, introduced in 1999, is Lange's flyback chronograph with an outsize date and a precisely jumping minute counter, and its movement is regularly cited as one of the finest chronographs ever made.
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After the first assembly and adjustment, each movement is taken apart, cleaned and finished, then reassembled. It lets the finishing be done after fitting and is part of what defines a Lange movement.
An alloy of copper, nickel and zinc, with no actual silver in it. Lange uses it untreated for many plates and bridges, so it develops a patina and marks easily during careless handling.
Some can, especially those with brand training, but parts access is limited. For complicated models or any doubt about parts, factory service is the safer route.
Walter Lange refounded the company in 1990, and the first collection of the modern era, including the Lange 1, was presented in 1994.
Wind at a regular time each day until you feel firm resistance, then stop. Don't force the crown past that point.
Movement condition, especially the German silver plate and engraved balance cock, matching serial numbers and papers, and the dial and date windows under magnification.