What a Portugieser IW358304 Clears for in Bangkok — June 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.
Thai Watch Market drawn from our work in Bangkok's pre-owned market Jan–May 2026:
- Low ฿285,000 — 2020–2021 references, worn, no box
- Median ฿315,000 — Full-set 2022–2023 with TH warranty
- High ฿365,000 — NOS 2024 with stickers
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:
- Heritage proportion — 40mm + thin lugs + leaf hands = classic silhouette
- Railroad minute track — Portugieser signature
- Caliber 82200 visible — sapphire caseback shows the Pellaton winding system
- Leaf hands — thin, hand-polished
Size — 40mm vs 41mm vs 44mm Portugieser Automatic
| Reference | Size | Median Bangkok 2026 |
|---|---|---|
| IW358304 | 40mm | ฿315,000 |
| 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.
IW358304 Dial Variants
| Colour | Median Bangkok |
|---|---|
| Silver dial (.001) | ฿305,000 |
| Blue dial (.002) | ฿322,000 |
| Green dial (.003) | ฿328,000 |
| Black dial (.004) | ฿312,000 |
Blue and Green trade above Silver; Green is a special edition with the lowest Thai supply.
What Bangkok Dealers Pay
| Scenario | Seller payout (blue 2023 full set) |
|---|---|
| Full-set, TH warranty | ฿258,000–฿278,000 |
| Full-set, overseas warranty | ฿245,000–฿262,000 |
| No box, papers | ฿225,000–฿242,000 |
| Loose | ฿205,000–฿222,000 |
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
From our transactions:
- 43% executive watch — managers wanting a dress watch less obvious than Patek
- 27% first IWC — buyers starting here before Pilot's Watch or Portofino
- 18% IWC collectors with Portugieser as the dressy piece
- 12% gifts
IW358304 Authenticity Checkpoints
- Caliber 82200 visible — must show ceramic Pellaton components through sapphire caseback
- Railroad minute track — sharp and consistent
- Leaf hands — thin and hand-polished
- Applique Arabic numerals — hand-polished
- IWC crown logo — stamped on the crown
Price Movement 2022–2026
- June 2022 — ฿345,000 (peak)
- December 2023 — ฿328,000
- December 2024 — ฿320,000
- June 2025 — ฿318,000
- June 2026 — ฿315,000
Down 8.7% from peak — stable thanks to IWC MSRP increases in 2024 and 2026.
Get a LINE quote for your Portugieser →
Data sources:
- Thai Watch Market database Jan–May 2026, from our work in Bangkok's pre-owned market- WatchCharts Portugieser IW358304
- IWC Thailand documentation 2026