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IWC Portugieser Automatic 40 IW358304 — Pre-Owned Bangkok October 2026

As of October 2026, a pre-owned IWC Portugieser Automatic 40 IW358304 is estimated at ฿135,000–฿205,000, median about ฿165,000, well below its US$7,700 US retail price (about ฿250,000). The figures come from WatchCharts and Loupe market values and Loupe's 60-day sold average (US$4,693–6,184) converted at ฿32.5/USD; they are US market estimates, not Bangkok transactions. This is the 40mm Portugieser with a silver dial and blue hands, using the in-house Caliber 82200 with a 60-hour power reserve.

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Naruedol Tantipong (Khun Naru)Reviewed by Naruedol Tantipong (Khun Naru) · Chief Authenticator
· Last Updated
IWC Portugieser Automatic 40 IW358304 — Pre-Owned Bangkok October 2026

Market reference prices (estimates)

ReferenceYearConditionPrice (THB)As of
IW3583042023Silver dial, blue hands, full set, TH warranty฿175,000May 2026
IW3583042022Silver dial, blue hands, full set฿160,000May 2026

These figures are estimates built from public market data. They are not transactions Thai Watch Market completed.

What a Portugieser IW358304 Sells for in Bangkok — October 2026

The IWC Portugieser Automatic 40 IW358304 launched in 2020 — a 40mm Portugieser returning to the line's original 1939 proportions (the original Portugieser ran at 41.5mm). Uses Caliber 82200 in-house with 60-hour power reserve.

Estimated price bands as of October 2026. They are the median of three index and sold figures: WatchCharts market price US$4,693 (7 October 2026), Loupe's 60-day sold average US$5,135 on four sales and Loupe's market price US$6,184. They are converted at ฿32.5/USD and cross-checked against Chrono24 asks of about US$4,165–6,250 and a US$4,750 dealer ask. They are US and international market figures, not Bangkok transaction records:

  • Low ฿135,000 — 2020–2021 references, worn, no box
  • Median ฿165,000 — Full-set 2022–2023 with TH warranty
  • High ฿205,000 — NOS 2024 with stickers

Even the top of this range sits well below the US$7,700 US retail price (about ฿250,000).

Portugieser in the Thai Market — Dressy + Heritage

The Portugieser carries 1939 heritage — Portuguese merchants commissioned an oversized wristwatch matching marine-chronometer accuracy.

What Thai collectors value:

  1. Heritage proportion — 40mm + thin lugs + leaf hands = classic silhouette
  2. Railroad minute track — Portugieser signature
  3. Caliber 82200 visible — sapphire caseback shows the Pellaton winding system
  4. Leaf hands — thin, hand-polished

Size — 40mm vs 41mm vs 44mm Portugieser Automatic

Reference Size Median Bangkok 2026
IW358304 40mm ฿165,000
IW500705 (older) 42.3mm ฿285,000
IW501705 (older) 42.3mm ฿305,000

The Thai market favours 40mm — fits 16–18 cm wrists and works under any shirt cuff. Only the IW358304 row was re-checked in October 2026; the two older rows are unverified and should not be read as trading above it.

IW358304 Dial Variants

The IW358304 is one dial version: silver dial with blue hands. IWC does not use .001/.002 dial suffixes; other dial colours carry their own references. The dial table this page used to show, with prices for four "IW358304" dial suffixes, was wrong and has been removed.

What Bangkok Dealers Pay

Scenario Seller payout (blue 2023 full set)
Full-set, TH warranty ฿129,000–฿135,000
Full-set, overseas warranty ฿121,000–฿129,000
No box, papers ฿111,000–฿119,000
Loose ฿101,000–฿109,000

Dealers pay 78–82% — IWC supply in Thailand is moderate because Riviera carries wide allocation.

Caliber 82200 — IWC's In-House Automatic

Launched 2017, replacing the 35111 (Sellita-based) in older Portugieser.

  • Pellaton winding system — IWC patent since 1950, now using ceramic components
  • 60-hour power reserve — up from 42 hours
  • 28,800 vph
  • Ceramic Pellaton parts — more durable than older metal Pellaton

Pellaton is a collector point — a uniquely IWC self-winding system.

Portugieser Bangkok Buyer Profile

Portugieser buyers in Bangkok tend to fall into a few groups:

  • Executive watch — managers wanting a dress watch less obvious than Patek
  • First IWC — buyers starting here before Pilot's Watch or Portofino
  • IWC collectors with Portugieser as the dressy piece
  • Gifts

IW358304 Authenticity Checkpoints

  1. Caliber 82200 visible — must show ceramic Pellaton components through sapphire caseback
  2. Railroad minute track — sharp and consistent
  3. Leaf hands — thin and hand-polished
  4. Applique Arabic numerals — hand-polished
  5. IWC crown logo — stamped on the crown

Price Movement 2022–2026

The 2022–2026 medians this page used to list had no source behind them, and every one of them sat above the watch's current US retail price, so they have been removed. The dated points we can source, converted at ฿32.5/USD:

  • June 2026 — US retail US$7,700 (WatchCharts), about ฿250,250; the reference is now discontinued
  • 7 October 2026 — WatchCharts market price US$4,693 (about ฿152,500)
  • 15 October 2026 — Loupe 60-day sold average US$5,135 (about ฿166,900) on four sales; Loupe market price US$6,184 (about ฿201,000)

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