IWC
IWC Portugieser Chronograph IW371611
The IWC Portugieser Chronograph (reference IW371611) is a 41 mm 18k 5N gold watch with a silver dial. It runs on the automatic caliber 69355 with a 46-hour power reserve and is water resistant to 30 m.
Specifications
Case
- Reference
- IW371611
- Collection
- Portugieser
- Case size
- 41 mm
- Thickness
- 13 mm
- Case material
- 18k 5N gold
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 30 m
- Bracelet / strap
- Leather strap
Dial and bezel
- Dial
- Silver
Movement
- Movement
- Automatic
- Caliber
- 69355
- Power reserve
- 46 hours
- Frequency
- 28,800 vph
- Jewels
- 27
- Functions
- Chronograph, Small seconds
Production
- Production
- Current
Dial versions
This reference was made with these dials and finishes.
IW371611 Silver
Silver-plated dial
How it compares within the Portugieser family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| IW371611 (This watch) | 41 mm | 18k 5N gold | Silver | 69355 | — |
| IW358304 | 40.4 mm | Stainless steel | Silver (blue hands) | 82200 | 2020– |
| IW358305 | 40.4 mm | Stainless steel | Blue | 82200 | 2020– |
| IW358310 | 40.4 mm | Stainless steel | Green | 82200 | 2020– |
| IW371604 | 41 mm | Stainless steel | Silver (gold-plated hands) | 69355 | 2020– |
| IW371606 | 41 mm | Stainless steel | Blue | 69355 | 2020– |
| IW371615 | 41 mm | Stainless steel | Green | 69355 | 2020– |
| IW371617 | 41 mm | Stainless steel | Silver (blue hands) | 69355 | 2020– |
| IW503703 | 44.4 mm | 18k white gold | Ice blue | 52616 | 2024– |
About the Portugieser family
The Portugieser began in the late 1930s, when two Portuguese merchants asked IWC for a wristwatch as precise as a marine chronometer. IWC fitted a pocket-watch movement into a large wristwatch case, which gave the line its size and its clean, railway-track dial.
The modern family includes the Portugieser Chronograph, first introduced in the 1990s and updated in 2020, the Portugieser Automatic with a seven-day power reserve, perpetual calendars, minute repeaters and tourbillons. Calibers in the catalog include the 52010 and 51011. Dealers identify the generation and metal from the reference and check the dial, strap and papers.
Quick answers
- What size is the IWC Portugieser Chronograph IW371611?
- The IWC Portugieser Chronograph IW371611 has a 41 mm case, 13 mm thick.
- What movement does the IWC Portugieser Chronograph IW371611 use?
- It uses the automatic caliber 69355, with a 46-hour power reserve.
- How water resistant is the IWC Portugieser Chronograph IW371611?
- It is water resistant to 30 metres.
- Is the IWC Portugieser Chronograph IW371611 still in production?
- Yes, it is a current reference.
- What is the IWC Portugieser Chronograph IW371611 made of?
- The case is 18k 5N gold. Bracelet or strap: Leather strap.
Catalog facts checked October 2026.