Audemars Piguet CODE 11.59
+7 % 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.
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Technical data
Audemars Piguet Ref. 26393ST.OO.A009KB.01 — Variants and collector names
Movement variants
- 4401 (2025–today) · 28800 bph
Bezel variants
- Blue Lacquered Inner Bezel
- Code 11.59 Fixed Bezel
Dial variants
- A009KB — Grey embossed; chronograph counters with blue outer zones at 3h (30-min.) and 9h (Small Seconds), blue counter at 6h (12h); applied 18K white gold hour indexes and hands; date at 4:30; SELFWINDING CHRONOGRAPH inscription
Crystal variants
- Code 11.59 Double Glareproofed Sapphire
Bracelet variants
- Blue Rubber-Coated Calfskin Strap Ref. Code 11.59 Rubber Strap
Reference 26393ST.OO.A009KB.01 is the steel-case entry into AP's Code 11.59 chronograph line, which the manufacture unveiled in 2019 after three years of development. At its heart beats Calibre 4401, a flyback chronograph movement produced entirely in Le Brassus, running at 28,800 vibrations per hour with approximately 70 hours of power reserve. The visual language follows the Code 11.59 design principle: a round outer case housing an octagonal inner structure — and a blue lacquered inner bezel that speaks directly to the dial designation A009KB.
## What Actually Drives the Market Value of This Reference
On the secondary market, the 26393ST trades between $34,290 and $48,006 — meaningfully below the gold variants in the same line, which command 40 to 60 percent more on average. Calibre 4401 is no off-the-shelf movement; it is 100 percent AP-proprietary, which explains the premium this reference carries over chronographs powered by third-party ébauches. Anyone buying or selling this reference should scrutinise the inner bezel carefully: scratches on the blue lacquer are irreversible and can knock up to 15 percent off market value.
## Box and Papers Are Worth $5,715
With the 26393ST, complete documentation makes a measurable difference of $3,429 to $5,715. Listings without papers compete directly against complete sets — and almost always come off worse. Bring the reference to market with its original box and papers and you land at the top of the price range; come without them and you are, in effect, subsidising the next buyer's deal.
Brand profile: Audemars Piguet
AP Royal Oak is one of the most coveted and most counterfeited luxury watches. The distinctive octagonal bezel with 8 screws and the tapisserie dial are the central inspection points.
- Date disc: genuine caliber 3120/5120 flips the date INSTANTLY at midnight (a snapping jump) — clones creep from 23:00 to 01:00
- Thickness: Royal Oak Jumbo 15202 is exactly 8.1 mm thick — clones measure 8.4–8.8 mm (movement sits too tall) — calipers reveal it immediately
- Tapisserie dial: under 10× magnification the pyramid edges must be sharp and geometrically precise — fakes show soft, pressed, or laser-etched surfaces
- Bezel screws: 8 hexagonal screws with mirror polishing and exact alignment — fakes: flatter, duller, asymmetric
Serial number format: AP serial numbers: 6–7-digit number engraved between the lugs at 9 o'clock. Reference number engraved separately on the opposite side. Very small — barely legible without a loupe.
Further sources
Buying guide: Audemars Piguet CODE 11.59
What drives the price here
At $44,463 the watch sells well if the condition is right. A market rule of thumb: a complete set with box, papers and warranty card brings 10 to 15 percent more than the bare watch. Buying without papers can pay off, but you take the same discount again later when you resell.
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 Audemars Piguet CODE 11.59 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 CODE 11.59.
- 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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