IWC Portugieser Automatic 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.
The current market value of the IWC Portugieser Automatic 42 (Ref. IW501705) is $12,705. The trend points down (-5.3% over four months).
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 $12,705. 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
IWC Ref. IW501705 — Variants and collector names
Known as: Portugieser 7-Day, Portugieser 7-Tage
Production phases and changes
- 2024: Introduction of IW5017 generation (replacing IW5007): Cal. 52011, case slimmed to 12.9 mm, box sapphire crystal on both sides, new color codes Dune / Horizon Blue / Obsidian Black
- 2025: Expansion of the IW5017 family with red gold variant IW501706 (red gold / silver dial)
Movement variants
- 52011 (?–today) · 28800 bph
Bezel variants
- IW501705-Bezel-SS-Fixed
Dial variants
- Dune — small seconds 9h / power reserve display 3h / Arabic indices gold-plated / no date display
Crystal variants
- IW501705-Saphir-BoxGlas-Doppel
Bracelet variants
- Schwarzes Alligatorleder, 22 mm Ref. IW501705-Strap-Black-Alligator-22mm
Watches and Wonders Geneva, April 9, 2024: IWC retires the entire 5007 line of the Portugieser Automatic in favor of the new 5017 reference family. The IW501705 — known among collectors as the Portugieser 7-Day or Portugieser 7-Tage — is one of the first models out of the gate, in steel with a Dune dial. 2024 marks a clean break between two generations, not a gentle facelift.
## 12.9 Millimeters Tall, Yet the Case Middle Stays the Same
The caliber 52011 sits inside a case IWC has slimmed down to 12.9 mm. The case middle itself kept its original height — the reduction comes from a new bezel and case-back construction, not an all-new midcase. Add to that box sapphire crystal front and back, both domed. Set an old 5007 next to a 5017 and the difference shows up mainly in the silhouette on the wrist.
## Dune Is the Understated One of Three New Dial Colors
With the 5017 generation, IWC introduced three dial colors: Dune, Horizon Blue, and Obsidian Black. The IW501705 runs the steel-and-Dune pairing — a warm, sandy beige in place of the silver or blue tones we'd come to expect from its predecessors. The bezel stays fixed, with no swap-out system and no vintage callback. That's exactly what makes this reference appealing to buyers who want the new case generation but don't want to stray too far from the classic Portugieser look on the dial.
## The Family Grows in 2025, but the IW501705 Stays Put
A year later, in 2025, IWC expands the 5017 family with the red gold reference IW501706, featuring a silver dial. The IW501705 itself doesn't change: steel and Dune remain the pairing that launched the new generation back in 2024.
Brand profile: IWC
IWC Schaffhausen produces high-quality pilot and sports watches. The Portugieser, Pilot's Watch (Big Pilot + Mark XVIII/XX), and Portofino are the most frequently faked references. Since 2025, APS Factory V3 has produced integrated 52010 super-clones with correct case thickness — classic tells (case thickness, movement visibility) are only partially reliable against these. Key checks today: engraving depth, seconds tick interval, thermally blued hand color, and sub-dial proportions.
- Serial number: genuine IWC serials are 6 digits, purely numeric, on the caseback — all serial numbers are verifiable in the IWC 'My IWC' portal. Fakes often have 7 digits or a mix of letters and numbers.
- Portugieser sub-dial seconds intervals: a GENUINE piece has exactly 3 mini-ticks between each seconds index (high beat rate of 28,800 vph) — fakes have 4 or irregular ticks (lower beat rate).
- Caseback engraving 'International Watch Company': genuine engraving is DEEP (perceptible with a fingernail) and sharp-edged — fakes are shallower, sometimes just laser-printed rather than truly engraved. Test: raking light and a loupe.
- Portugieser/Portofino blue hand color: thermally blued steel shifts from deep blue to light violet depending on viewing angle — painted fake hands show a flat, uniform blue.
Serial number format: IWC serial numbers: 6-digit numeric on the caseback. Verifiable online via the IWC My IWC Portal.
Further sources
Buying guide: IWC Portugieser Automatic 42
Market situation and price range
At $12,705 the Portugieser Automatic 42 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.
Where the price stands
The price has fallen by -5.3% over the past four months. No crash, but a clear downward trend. Buyers currently have room to negotiate; sellers are better off waiting for the market to bottom out — unless they have to sell.
Watch out for swings: This reference has an above-average volatility of 24.5 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 IWC Portugieser Automatic 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 Portugieser Automatic 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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