Breitling Endurance Pro 44mm Unisex Watch Turquoise The Watc
13 % below 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 $3,451. 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
Breitling Ref. X823101L1B1S1 — Variants and collector names
Known as: Endurance Pro Ironman Turquoise WoS, WoS Turquoise Exclusive, Ironman Finisher Turquoise, Endurance Pro Breitlight Turquoise
Production phases and changes
- 2021: Launch of Breitling–IRONMAN® partnership, introduction of X823101 subline
- 2024: Annual IRONMAN® World Championship / 70.3 Championship special edition
Movement variants
- 82 (?–today)
Bezel variants
- X82310-B1-BiDi-Breitlight-Black
Dial variants
- Finisher Dial — BREITLING / ENDURANCE PRO / IRONMAN finisher logo at 6 o'clock in gold/bronze; black dial
- Ironman 70.3 World Championship 2025 — IRONMAN® 70.3 World Championship logo at 6 o'clock, turquoise/orange chrono sub-dials
- WoS Turquoise — BREITLING / ENDURANCE PRO / 1/10s chrono sub-dials in turquoise, turquoise index markers and hands
Crystal variants
- Saphirglas beidseitig AR
Bracelet variants
- Gummiband Schwarz, Breitlight Tang-Schließe Ref. X82310-S1-Rubber-Black-TangBreitlight
- Gummiband Schwarz mit türkisen Akzenten, Breitlight Tang-Schließe – WoS Exclusiv Ref. X82310-S1-Rubber-Turquoise-WoS
When Breitling unveils reference X823101L1B1S1, it opens with a collaboration Swiss watchmaking hadn't really seen before. In 2021, the brand becomes the official timekeeper of the IRONMAN series, and the Endurance Pro X823101 kicks off the line. Two debut versions hit the market at the time — a black-and-gold execution exclusive to finishers, and a red variant sold globally. The turquoise execution discussed here, with its X823101-L1-Turquoise-WoS dial, goes by names among collectors like "Endurance Pro Ironman Turquoise WoS" or "WoS Turquoise Exclusive" — a nod to its origins as a special batch within Breitling's distribution structure.
## Caliber 82 and a Case Built from Breitlight
Under the dial sits Caliber 82, a quartz movement that powers the entire X823101 family. The black, bidirectional rotating bezel X82310-B1-BiDi-Breitlight-Black is made, like the case itself, from Breitlight — a composite material roughly a third lighter than titanium. Starting in 2024, Breitling begins reissuing the X823101 code annually as event editions tied to the IRONMAN World Championship. In 2025, reference X823101K1C1S1 follows with a turquoise-orange version limited to 300 pieces at 3,600 euros, picking up directly on the Turquoise look of the watch discussed here. For buyers, that means the WoS Turquoise execution marks the turning point from early, open production to the limited annual editions that have since shaped the secondary market for this reference.
Brand profile: Breitling
Breitling is known for aviation and dive watches. Chronographs (Navitimer, Chronomat) are the most frequently counterfeited. Pay close attention to slide rule details and COSC certification.
- Wing logo: a genuine Breitling logo shows the anchor and wing tips that NEVER touch — precise negative space between them — fakes let the tips meet or overlap
- 3D 'B' crown: the 'B' on the crown must appear three-dimensional with a light reflection on the curve — a flat 'B' = fake
- Bezel scale vs. dial: the outer white bezel scale must align precisely with the inner black dial indices — fakes show misalignment
- Date disc depth: a genuine Navitimer date disc sits flush with the dial plane — fakes show the date window as a 'crater' (noticeably sunken or raised)
Serial number format: Breitling serial numbers: alphanumeric, located between the lugs at 6 o'clock. Format: one letter + 8 digits (e.g. 'AB012012'). Older models: digits only.
Further sources
Buying guide: Breitling Endurance Pro 44mm Unisex Watch Turquoise The Watc
Entry into Breitling
At $3,451 this reference is one of the more affordable ways to wear a Breitling 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.
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 Breitling Endurance Pro 44mm Unisex Watch Turquoise The Watc 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 Endurance Pro 44mm Unisex Watch Turquoise The Watc.
- 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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