A. Lange & Söhne Lange 1
+78 % above RRP
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ℹ️ 1-month trend
Price change over the past 30 days. Shows the short-term market movement — relevant if you want to buy or sell soon.
ℹ️ 4-month trend
The central metric behind the momentum score. It filters out short-term swings and shows the true, medium-term market trend of this reference.
ℹ️ Volatility
Annualised price fluctuation. Below 10 % = very stable, 10–20 % = normal, above 20 % = volatile. With high volatility the price can change quickly — in both directions. Be cautious about buying without checking the current price.
ℹ️ Momentum score
ChronoCheck's own indicator from 0 to 100, calculated from the 4-month trend, volatility and market direction.
- Above 60 — Upward trend. Good time to sell, prices are rising.
- 40 – 60 — Neutral. Stable price level, no pressure to act.
- Below 40 — Downward trend. Wait or enter at a good price.
ℹ️ Investment Grade A/B/C/D
ChronoCheck's own rating for each reference. A 0–100 point scale, made up of four weighted components:
- Momentum (40 pts) — trend strength from the momentum score.
- Liquidity (25 pts) — number of active live listings.
- Stability (20 pts) — inverse volatility — the calmer, the better.
- Source robustness (15 pts) — number of independent market sources.
- A · 75+ Trend is right, liquidity good, data broad.
- B · 55–74 Solid, but one component weaker.
- C · 35–54 Average, volatility or market breadth weigh on it.
- D · below 35 Downward or too little data — a collector's piece.
Not investment advice. Pure data analysis from aggregated market sources.
What if you had bought back then …
What would a purchase at the median market price back then have become — at today's level of $36,237. A pure return calculation, excluding insurance, servicing and transaction costs.
Data from an aggregated median time series (watch_market_daily). CAGR = Compound Annual Growth Rate, normalized to 365 days. Not an investment recommendation.
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Technical data
Lift angle 52° — important for timing-machine diagnosis: with this value a watchmaker can correctly measure rate deviation, amplitude and beat error. ChronoCheck verifies such technical details directly from the manufacturers' factory specifications.
Brand profile: A. Lange & Söhne
German luxury watch manufacture at the absolute pinnacle of the industry (40.000–500.000+ EUR). Extremely low production volumes (~5.000 pieces/year) and the highest level of craftsmanship make fakes relatively rare, though increasingly sophisticated. Primary counterfeiting targets: Lange 1, Zeitwerk, Datograph.
- Three-quarter plate is absent or made of simple brass instead of being immaculately finished with blued screws and Glashütte ribbing — definitive fake indicator
- Big Date mechanism: genuine examples show a perfectly flush transition between both digit discs with no visible gap; fakes almost always display misalignment or a height difference
- Balance cock without hand-engraved swan-neck fine adjustment, or with machine engraving — knockout criterion
- Movement plate made of German silver (not brass) with its characteristic yellowish-white color; fakes are usually too yellow or too grey
Serial number format: Six-digit sequential number since 1994, engraved on the inner case-back between the lug attachments at 6 o'clock and repeated on the movement plate. Engraving must be razor-sharp and uniformly deep. No prefixes or letters in the standard serial number.
Further sources
Buying guide: A. Lange & Söhne Lange 1
Market situation and price range
At $27,519 the Lange 1 sits in a segment where first owners sell regularly — clean pieces with box and papers are not uncommon. The jump from "good" to "very good" usually costs 1,000 to 2,000 euros more at purchase. You get that premium back on resale if the condition is preserved.
Movement and case
The 38.5 mm case in Yellow gold, houses the caliber Manual winding. What to look at especially on this watch: wear on case and clasp, plus traces of improper refurbishment. It takes ten seconds to check at a meeting, but it noticeably affects the value.
Where the price stands
The price has fallen by -7.8% over the past four months. No crash, but a clear downward trend. Buyers currently have room to negotiate; sellers are better off waiting for the market to bottom out — unless they have to sell.
Watch out for swings: This reference has an above-average volatility of 58.6 percent. In concrete terms: the price can move by several hundred euros within a few weeks. Check the current value before buying or selling — old listings or auction results from two months ago are of little help.
What to look out for when buying?
- Authenticity: The serial number and reference on the case must match the papers. A professional authenticity check of the A. Lange & Söhne Lange 1 reliably rules out counterfeits.
- Condition: Check wear on case and clasp — professional refurbishment can leave traces.
- Service history: A documented service by the manufacturer or a certified watchmaker increases the value.
- Scope of delivery: Box, papers and warranty card make a noticeable price difference on the Lange 1.
- Independent certification: The CPS-52 standard covers 52 checkpoints — from the serial number and the timing machine to water resistance. The result is secured on the blockchain and can be verified at any time.
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