IWC Portofino Portofino Chronograph Stainless Steel / Black / Milanese
Reference IW3910-10
About this watch
The IWC Portofino IW3910-10 is a masterclass in luxury watchmaking, blending sophisticated style with precise chronograph functionality. Crafted from high-quality stainless steel, this timepiece boasts a polished finish and 42.00 mm diameter that makes it visually striking without being overwhelming on the wrist. The sapphire crystal glass ensures crystal-clear visibility while resisting scratches. At its heart lies the IWC caliber 75320 automatic movement, based on the reliable Sellita SW500-1, featuring 25 jewels and a 44-hour power reserve. This chronograph watch allows for accurate timing with hours, minutes, and small seconds displayed prominently, making it perfect for formal events or business meetings. The black dial features stick and dot indexes providing a clean look while ensuring readability. With a water resistance rating of 30 meters, this watch is suitable for everyday wear and comes equipped with an adjustable Milanese bracelet that strikes a perfect balance between comfort and style.
Key Features
- Stainless steel construction
- Sapphire crystal glass
- IWC caliber 75320 automatic movement
- Chronograph functionality
- Black dial with stick and dot indexes
- Adjustable Milanese bracelet
- 30 meter water resistance
Specifications
- Brand
- IWC
- Family
- Portofino
- Model
- Portofino Chronograph Stainless Steel / Black / Milanese
- Reference
- IW3910-10
- Movement
- 75320
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date, Day
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995](https://preview.redd.it/26knmk1fw33h1.jpg?width=640&crop=smart&auto=webp&s=1e3e79341edae6024a3e5c3e0c8ed68e4f66dfaf)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995
This 2025 IWC Portofino Chronograph Black is a brand new timepiece featuring a chronograph function. The watch comes in a 39mm case and includes a full set of accessories, including the box, travel case, international warranty card, and instructions manual.
- Condition: New condition
- Case size: 39mm diameter
![[WTS] IWC Portofino Chronograph $3200 SHIPPED](https://preview.redd.it/mkibqkdi0x2h1.jpg?width=640&crop=smart&auto=webp&s=11970ed3073065e97b7017a4c0260080570a6702)
IWC Portofino Chronograph $3200 SHIPPED
A pre-owned IWC Portofino Chronograph in working condition at the time of listing, but not guaranteed for future performance.
- Condition: Pre-owned, working condition
- Case Size Without Crown: 42 mm
- Case Size With Crown: 45 mm
- Straps Included: 1
![[WTS] IWC Portofino 42MM Black Dial, Stainless Steel Full Set](https://preview.redd.it/kmanydcr4s2h1.jpg?width=640&crop=smart&auto=webp&s=8a1098bf361625517915da89932d3731ff2ee942)
IWC Portofino 42MM Black Dial, Stainless Steel Full Set
This 2018 IWC Portofino Chronograph features a black dial, stainless steel case and Milanaise bracelet. It includes day and date display, small hacking seconds, chronograph function and is a full set with original box, warranty card and manual.
- Condition: beautiful condition with no visible scratches
- Bracelet Type: Milanaise
- Case Size: 42MM
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995](https://preview.redd.it/shse7glxil2h1.jpg?width=640&crop=smart&auto=webp&s=8d377a7a4f2c2c7bcdf70f1ce6d935b8aedbd557)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995
A 2025 IWC Portofino Chronograph Black IW391404 is available for sale. It features a chronograph function and comes with a full set including the watch, box, travel case, international warranty card, and instructions manual.
- Condition: New condition
- Size: 39mm diameter
- Year: 2025
- Case Contents: Watch, Box, Travel Case, International Warranty Card, Instructions Manual
![[WTS] IWC Portofino Chronograph — 42mm — Ref. IW391029 — $2,699 Shipped 🔥](https://preview.redd.it/gvh2u64p9e2h1.jpg?width=640&crop=smart&auto=webp&s=0edbfc214f28f84f4ff0852f6d46617e60aeab8e)
IWC Portofino Chronograph — 42mm — Ref. IW391029 — $2,699 Shipped 🔥
This IWC Portofino Chronograph features a clean, timeless case design paired with a classic chronograph layout. It's a refined everyday luxury chronograph that wears well at 42mm.
- Condition: Fair overall
- Case Diameter: 42mm
- Condition Notes: Crystal has minor AR coating wear, Bezel, case, caseback, and clasp show hairlines from normal wear
![[WTS] IWC Portofino Automatic Moonphase 40mm IW459402 – Box/Watch/Papers – $5000 - Warranty until 11/2029!](https://preview.redd.it/rrngk5yj5d2h1.jpg?width=640&crop=smart&auto=webp&s=324be9208f4d00df92f6b0ad4ae397787dc61be0)
IWC Portofino Automatic Moonphase 40mm IW459402 – Box/Watch/Papers – $5000 - Warranty until 11/2029!
This IWC Portofino Automatic Moonphase features a 40mm case. The watch comes with its original box, papers, and is still under warranty until 11/2029.
- Box: yes, included
- Papers: yes, included
- Warranty: until November 2029
![[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,850](https://preview.redd.it/zsy32d9m6k1h1.jpg?width=640&crop=smart&auto=webp&s=d5bbbdffad0e307da19b114b591daa26e009b26c)
IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,850
The IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake is a striking and elegant limited-edition piece that blends classic dress watch refinement with artistic flair. The 37mm polished stainless steel case paired with the rich burgundy/red dial gives this watch an eye-catching yet tasteful presence on the wrist.
- Condition: great condition
- Case size: 37.1 mm
- Thickness: 11.3 mm
- Dial color: burgundy/red
![[WTS] IWC Portofino Chronograph $3200 SHIPPED](https://preview.redd.it/w0bak8p3yi1h1.jpg?width=640&crop=smart&auto=webp&s=938a0110af7e2f339dec166329b50b2499f31d78)
IWC Portofino Chronograph $3200 SHIPPED
This IWC Portofino Chronograph features a 42 mm case without crown and 45 mm with crown. It includes the original strap and buckle.
- Condition: Pre-owned, working condition, sold as-is
- Case size: 42mm diameter
- Band type: original
![[WTS] 2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395](https://preview.redd.it/v8trb6g7u41h1.jpg?width=640&crop=smart&auto=webp&s=b066caef86802e393fe61b87ec2544f4f2f1abba)
2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395
A 2021 IWC Portofino Chronograph White, a 42mm chronograph watch featuring a white dial.
- Condition: Excellent condition with minimal signs of wear
- Year: 2021
- Size: 42mm diameter
- Contents: Box, Travel Case, International Warranty Card, Instructions Manual