IWC Portofino Portofino Chronograph 150 Years Stainless Steel / Blue
Reference IW3910-23
About this watch
The IWC Portofino Chronograph 150 Years Stainless Steel / Blue (model IW3910-23) is a masterpiece of luxury watchmaking. Its sleek and sophisticated design effortlessly combines classic elegance with modern functionality, making it a stunning addition to any wrist. The deep blue dial is mesmerizing, paired perfectly with the stainless steel case that provides a stylish contrast. With a diameter of 42mm and a height of 13.5mm, this watch has a commanding presence without feeling bulky. Crafted from high-quality stainless steel, the case ensures durability while maintaining a polished finish. The sapphire crystal is scratch-resistant, adding an additional layer of protection to the beautiful blue dial. Beneath its stunning exterior lies the IWC caliber 79320 movement, based on the legendary Valjoux 7750 and re-engineered to meet IWC's exacting standards. With 31 jewels, a frequency of 28,800 vibrations per hour, and a power reserve of 44 hours, this watch is both reliable and stylish. The chronograph feature adds functionality to its sophisticated design, making it not just a timekeeper but also a tool for precision. With a date and day display, you'll always be on top of your schedule. While it's not designed for deep-sea diving, the IW3910-23 can handle splashes and brief immersion, making it perfect for everyday luxury wear.
Key Features
- 42mm diameter stainless steel case
- 13.5mm height with polished finish
- Sapphire crystal scratch-resistant
- IWC caliber 79320 movement (based on Valjoux 7750)
- Chronograph feature with hours, minutes, and small seconds sub-dials
- Date and day display
- 30m water resistance
Specifications
- Brand
- IWC
- Family
- Portofino
- Model
- Portofino Chronograph 150 Years Stainless Steel / Blue
- Reference
- IW3910-23
- Movement
- 79320
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date, Day
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Blue
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
![[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
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995](https://preview.redd.it/2xwwm0unt41h1.jpg?width=640&crop=smart&auto=webp&s=b45fa1fe2807393fa5a44e46e680cc783c1c630a)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995
Up for sale is a IWC Portofino Chronograph Black, a 39mm timepiece with chronograph functionality.
- Condition: New condition
- Year: 2025
- Case size: 39mm
![[WTS] 2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395](https://preview.redd.it/avlnylqo3m0h1.jpg?width=640&crop=smart&auto=webp&s=ab87546b8f29434c26ea746f02c95cb3a8387b73)
2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395
A 2021 IWC Portofino Chronograph White, a 42mm watch in excellent condition.
- Condition: Excellent condition with minimal signs of wear
- Case size: 42mm diameter
- Shipping method: Fedex
- Insurance included: true
![[WTS] 2015 IWC Portofino Chronograph | Complete set | Cheapp](https://preview.redd.it/834ueh548e0h1.jpg?width=640&crop=smart&auto=webp&s=8b07b0cbb7d1b67b883882b51b807043d94b7134)
2015 IWC Portofino Chronograph | Complete set | Cheapp
This Portofino is a timeless classic — elegant, refined, and versatile. The chronograph adds useful functionality without detracting from the dress-watch feel, making this a great addition for both daily wear and special occasions.
- Condition: Good pre-owned
- Case Size: 42mm
- Movement: IWC automatic chronograph
- Includes: Original IWC box, IWC warranty card, stainless steel mesh bracelet