Breitling Premier B01 Chronograph 42
9 % 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.
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Technical data
Breitling Ref. AB0145331K1P1 — Variants and collector names
Known as: Premier Copper, Copper Premier 42
Production phases and changes
- 2023: Introduction of AB0145 as the MY23 refresh – replacing the predecessor Ref. AB0118
Movement variants
- B01 (2023–today) · 28800 bph
Bezel variants
- 121 – Fixed Smooth Steel
Dial variants
- AB0145-171C1-Blue — PREMIER / Chronograph 42 / Breitling Cursive / Arabic numerals / Bicompax (subdials at 3 + 9 o'clock) / steel indices
- AB0145-211G1-Silver — PREMIER / Chronograph 42 / Breitling Cursive / Arabic numerals / Bicompax (subdials at 3 + 9 o'clock) / steel indices
- AB0145-221B1-Black — PREMIER / Chronograph 42 / Breitling Cursive / Arabic numerals / Bicompax (subdials at 3 + 9 o'clock) / steel indices
- Copper Dial Premier — PREMIER / Chronograph 42 / Breitling Cursive / Arabic numerals / Bicompax (subdials at 3 + 9 o'clock) / steel indices
- AB0145-371L1-Green — PREMIER / Chronograph 42 / Breitling Cursive / Arabic numerals / Bicompax (subdials at 3 + 9 o'clock) / steel indices
Crystal variants
- Saphirglas beidseitig AR
Bracelet variants
- Premier 7-Row Rouleaux Stahlband Ref. AB0145-A1-Steel-Rouleaux-7Row
- Alligatorleder Armband P1 Ref. AB0145-P1-Alligator-Strap
- Alligatorleder Armband P2 Ref. AB0145-P2-Alligator-Strap-Alt
With the AB0145331K1P1, Breitling pulled off a generational shift in spring 2023 that was quieter than anticipated — yet immediately drew attention on the secondary market. The reference replaces the AB0118 as its direct successor, arriving with a copper dial that had never existed anywhere in the Premier lineup before. First secondary market listing: March 2023.
## Caliber B01 — the case that actually matters
The heart of the watch is Breitling's in-house Caliber B01, a chronograph movement the brand has developed and manufactured entirely on its own since 2009. 70 hours of power reserve, 28,800 vph, COSC-certified. The AB0145331K1P1 houses this caliber in a steel case measuring 42 mm in diameter and 13.6 mm in height — 0.05 mm slimmer than the predecessor reference, a difference that is just barely perceptible on the wrist.
## Copper as a deliberate positioning call
Of the five dial variants offered in the MY23 refresh (copper, blue, silver, black, and green), the copper dial is the one with the sharpest visual identity. Collectors refer to it by two names: "Premier Copper" and "Copper Premier 42." The plain steel bezel ring (code 121) reinforces the watch's dressy character. For anyone hunting a B01 chronograph with genuine talking points, this is one of the less commonly spotted combinations in the under-$11,669 segment.
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 Premier B01 Chronograph 42
Entry into Breitling
At $7,783 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.
Watch out for swings: This reference has an above-average volatility of 46.7 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 Breitling Premier B01 Chronograph 42 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 Premier B01 Chronograph 42.
- 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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