Jaeger-LeCoultre Master Ultra Thin Date
20 % below RRP
📱 Track this reference's market value on the go with the watch value app — daily median, price alerts and a watchlist.
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 $9,367. 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: Jaeger-LeCoultre
Swiss luxury manufacture (founded 1833) in the upper price segment ($5,715–$171,450+), known for the Reverso and complicated watches. Medium to high fake risk for Reverso, Polaris, and Master lines. Super clones exist, but movement quality and finishing usually betray fakes.
- Movement finishing: Genuine JLC pieces show precise perlage on the rotor and plates, sharp anglage on bridge edges, and polished screw heads. Fakes have messy or flat perlage and dull edges.
- Reverso flip mechanism: The original has smooth, precise resistance when flipping with a clean, exact snap into position. Fakes have loose play, creaking noises, or a jerky action.
- Guilloché (Reverso case back): Genuine guilloché is deep and uniform with sharp lines and natural light play. Fakes show a shallow, often laser-etched or stamped pattern with uneven depths.
- Dial print quality: JLC has extremely sharp indices and text with no bleeding. Fakes show blurry edges, uneven color, and the wrong font (too thick/thin).
Serial number format: Serial number on case back and movement must match. Engraving must be sharp, uniformly deep (approx. 0.1mm), and centered. Fakes often show shallower engravings, the wrong font (too bold/thin), or discrepancies between case and movement. On the Reverso, the number sits on the inside of the flip frame — check position and depth.
Further sources
Buying guide: Jaeger-LeCoultre Master Ultra Thin Date
Entry into Jaeger-LeCoultre
At $9,367 this reference is one of the more affordable ways to wear a Jaeger-LeCoultre on your wrist. That is precisely why many pieces have already passed through several hands — condition varies accordingly. Buyers here should pay particular attention to service history and honest photos from the seller.
Movement and case
The 39 mm case in Steel, is driven by a automatic movement. What to look at especially on this watch: deep scratches on the case, a polish that has been done too often, and play in the bezel. It takes ten seconds to check at a meeting, but it noticeably affects the value.
Where the price stands
The price of the Master Ultra Thin Date has risen by +5.1% over the past four months. Anyone selling now hits a good window. If you want to buy: no need to wait — the market is currently more hot than cold, and a clear end to the trend is not in sight.
Watch out for swings: This reference has an above-average volatility of 91.8 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 Jaeger-LeCoultre Master Ultra Thin Date reliably rules out counterfeits.
- Condition: Check scratches on the case and bezel — 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 Master Ultra Thin Date.
- 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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