IWC Portofino Portofino Chronograph Stainless Steel / Silver
Reference IW3910-31
About this watch
The IWC IW3910-31 Portofino Chronograph is a masterpiece of horology, exuding sophistication with its sleek stainless steel case and silver dial. The elegant design works seamlessly for any occasion, from formal events to casual outings. Powered by the reliable IWC caliber 75320 automatic movement, this watch boasts a chronograph function and date/day display, making it incredibly functional. With a water resistance of 30 meters and a comfortable leather strap, this timepiece is both stylish and durable. Whether you're an avid collector or just starting your watch journey, the IWC IW3910-31 Portofino Chronograph is sure to leave a lasting impression.
Key Features
- 42mm stainless steel case
- IWC caliber 75320 automatic movement
- Sapphire glass crystal
- 30m water resistance
- Chronograph function and date/day display
- Leather strap with classic elegance
Specifications
- Brand
- IWC
- Family
- Portofino
- Model
- Portofino Chronograph Stainless Steel / Silver
- Reference
- IW3910-31
- Movement
- 75320
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date, Day
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Silver
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795](https://preview.redd.it/4u0pmkk90ryg1.jpg?width=640&crop=smart&auto=webp&s=a032f524e6bede09903a5fb9f65880527ecdb8b6)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795
2025 IWC Portofino Chronograph Black in new condition, a 39mm chronograph watch.
- Condition: New condition
- Case Size: 39mm diameter
![[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995](https://preview.redd.it/3wzrirk71cyg1.jpg?width=640&crop=smart&auto=webp&s=38946686bbf139699651cc049005d8476ca669eb)
2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995
This is a 2019 IWC Portofino Chronograph Blue, a luxury watch featuring chronograph functionality.
- Condition: Excellent condition with minimal signs of wear
- Case Size: 42mm
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795](https://preview.redd.it/r76c0woj0cyg1.jpg?width=640&crop=smart&auto=webp&s=bddbf8e09f6b120f4dd2bd1fa8f1c56865e9b127)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795
This is a brand new IWC Portofino Chronograph Black, with a 39mm diameter. The watch comes in excellent condition, fully set and ready to wear.
- Condition: New condition
- Year: 2025
- Case diameter: 39mm
![[WTS] IWC Portofino IW333101 – Solid 18k Gold – Ultra Thin Dress Watch – $3,250 OBO](https://preview.redd.it/481n563wefxg1.jpg?width=640&crop=smart&auto=webp&s=3fd7b387e46b2ab63e10aaf1c9d0fca599c4bf43)
IWC Portofino IW333101 – Solid 18k Gold – Ultra Thin Dress Watch – $3,250 OBO
A IWC Portofino IW333101 is a timeless, ultra-thin dress watch in solid 18k yellow gold with a clean, minimalist dial and date window at 3 o'clock. It features understated luxury and ideal for both formal occasions and everyday wear.
- Condition: Very Good
- Case material: 18k yellow gold
- Movement type: quartz
![[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,850](https://preview.redd.it/kvn6kfgnmcxg1.jpg?width=640&crop=smart&auto=webp&s=5463359c3c6b842d6b4d456364e849aae94c4fea)
IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,850
A limited-edition IWC Portofino Automatic Moon Phase watch with a striking and elegant design, featuring a moon phase display and a bespoke snake-shaped solid gold rotor.
- Condition: great condition
- Case diameter: 37.1 mm
- Thickness: 11.3 mm
- Dial color: burgundy/red
![[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995](https://preview.redd.it/7inx014qecxg1.jpg?width=640&crop=smart&auto=webp&s=11df5c1cb83a9167047c0b9e96cc876222bea097)
2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995
Up for sale is a IWC Portofino Chronograph Blue, a 2019 model featuring a chronograph function.
- Condition: Excellent condition with minimal signs of wear
- Case size: 42mm diameter
- Shipping: Fully insured through Fedex within the USA
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795](https://preview.redd.it/hbqd4g5i8cxg1.jpg?width=640&crop=smart&auto=webp&s=0e6c3f365f0585d534e5ed802e74aba5e760bd14)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795
A 2025 IWC Portofino Chronograph Black, a high-end chronograph watch with sleek design.
- Condition: New condition
- Case size: 39mm
![[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995](https://preview.redd.it/wnaupypaozwg1.jpg?width=640&crop=smart&auto=webp&s=28d74131b631d0f4a34176313440bd86b09a8c87)
2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995
A blue-dialed Portofino Chronograph from IWC, featuring a 42mm case size.
- Condition: Excellent condition with minimal signs of wear
- Case size: 42mm
- Movement status: Running well
![[WTS] IWC Portofino Ref. IW391030 Day-Date Chronograph on Bracelet](https://preview.redd.it/k30qz4akbzwg1.jpg?width=640&crop=smart&auto=webp&s=301c8fd356c28ca95077a7f781844d3f848730cb)
IWC Portofino Ref. IW391030 Day-Date Chronograph on Bracelet
This IWC Portofino Chronograph Reference IW391030 features a polished stainless steel case and a classic black dial adorned with rhodium-plated appliqués and sleek leaf-style hands.
- Condition: Excellent, some light wear
- Material: Stainless Steel
- Function: Time, Day & Date
- Dial color: Black