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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The IWC Portofino Chronograph 39 reference IW391503 pairs a 39 mm polished-steel case and silver-plated dial with a five-link steel bracelet. Announced on 28 August 2024, it is the first Portofino Chronograph 39 to receive a stainless-steel bracelet, according to IWC. Its automatic calibre 69355 offers a column-wheel chronograph and a 46-hour power reserve; IWC’s Swiss product page lists the watch at CHF 7,300 including VAT.
What is new about IW391503?
The bracelet is the defining change: IWC introduced IW391503 as the first Portofino Chronograph 39 fitted with a five-link stainless-steel bracelet. That “first” claim applies to the 39 mm Portofino Chronograph and is IWC’s characterization in its 28 August 2024 launch announcement. The model retains the collection’s polished steel case and silver-plated dial.
The bracelet combines brushed and satin-finished surfaces. IWC also says an integrated quick-change system lets the owner swap it for another option, such as traceable Swiss calf leather. The cited product information does not establish compatibility with third-party straps or that an additional strap is included.
How are the case and dial configured?
The case is polished stainless steel and measures 39 mm in diameter. IWC’s Swiss product page lists its height as 13 mm. The silver-plated dial is paired with rhodium-plated hands and appliques, while a sapphire-glass case back provides a view of the movement.
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What does the chronograph movement do?
IWC specifies its automatic, in-house calibre 69355, a column-wheel chronograph movement with 205 components and a 46-hour power reserve. The chronograph measures stop times up to 30 minutes; the official specifications list chronograph hours, minutes, and seconds. These are manufacturer specifications, not independent timing-test results.
What are the published specifications and Swiss price?
| Specification | IWC-published detail |
|---|---|
| Reference | IW391503 |
| Case | Polished stainless steel; 39 mm diameter; 13 mm height on the Swiss product page |
| Dial | Silver-plated, with rhodium-plated hands and appliques |
| Bracelet | Five-link stainless steel, with brushed and satin-finished surfaces |
| Movement | Automatic IWC-manufactured calibre 69355; column-wheel chronograph; 205 components; 46-hour power reserve |
| Chronograph | Hours, minutes, and seconds; measures stop times up to 30 minutes |
| Case back | Sapphire glass |
| Water resistance | 5 bar, as listed on IWC’s Swiss product page |
| Swiss list price | CHF 7,300 including VAT, as listed on IWC’s Swiss product page accessed 8 October 2026 |
The 5 bar figure is the published rating, not a recommendation for a specific water activity. Dimensions, water resistance, and price above follow IWC’s Swiss product page; the CHF price is specific to that market and may change. Check local pricing and availability with IWC or a local retailer.
Quick Recap
Best Value
- Case Size: 39.00 mm, Band Width: 20, Case Thickness: 11.10 mm
- Automatic movement, 316L stainless steel case, Arabic dial type, Date
- Leather strap/bracelet, interchangeable quick release bracelet,standard buckle closure
- Water-resistant up to a pressure of 5 bar (50 m / 165 ft): suitable for short periods of recreational swimming and showering, but no diving or snorkeling.
- 2 Year International Warranty
Rank #3
- Automatic L688 movement, hours, minutes, small seconds at 9 o'clock and date
- Blue Leather strap with buckle
- 5 Year International Warranty
Rank #2
- IWC Da Vinci Automatic Unisex Watch IW459306
What to weigh before choosing it
- Bracelet configuration: IW391503 brings the five-link steel bracelet to the 39 mm Portofino Chronograph. IWC describes the bracelet as offering robustness and high wearing comfort, but that is the manufacturer’s claim rather than an independently tested finding.
- Movement and timing: The calibre 69355’s 46-hour reserve and 30-minute chronograph range are the relevant published figures if those functions matter to your routine.
- Fit: The 39 mm diameter and 13 mm height provide a useful starting point for assessing size, but published dimensions do not establish how the watch will feel on an individual wrist.
- Water resistance and price: Consider the 5 bar rating in light of your intended use, and treat CHF 7,300 including VAT as the Swiss page’s listed price rather than a global or guaranteed current price.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
