Patek Philippe
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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.
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Brand profile: Patek Philippe
Patek Philippe produces the world's most exclusive watches. Counterfeits are typically identifiable by their build quality — the genuine article sets standards that are nearly impossible to replicate.
- Dial embossing Nautilus: the genuine piece has 11 RAISED horizontal stripes with precise edges. 3D depth is visible under raking light. Flat stripes = fake.
- Case thickness Nautilus 5711: EXACTLY 8.3mm measured with calipers. Deviation of +0.5mm = fake with 7750 base or Miyota.
- Weight Nautilus 5711/1A: 131.4g ± 1g (with bracelet). >5g deviation = suspect.
- PP Seal on rotor (display back): the genuine Patek Philippe Seal features DEEP 3D engraving with sharp edges. Fake rotors have a shallow stamp.
Serial number format: Patek serial numbers: 6–7-digit number on the caseback. Complete archive held by Patek Philippe — an extract can be ordered.
Further sources
Buying guide: Patek Philippe
Market situation and price range
At $19,305 the 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.
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 Patek Philippe 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 .
- 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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