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] 2018 IWC Portofino Chronograph 42mm Ref IW391008 | Box & Papers](https://preview.redd.it/zvw2lh1l670h1.jpg?width=640&crop=smart&auto=webp&s=5e0cb819c83a4882ea80c14c40981fe98e0e457b)
2018 IWC Portofino Chronograph 42mm Ref IW391008 | Box & Papers
a classy IWC Portofino Chronograph in 42mm size with black dial and automatic movement
- Condition: good preowned condition with normal wear
- Movement Type: Automatic
- Power Reserve: 44 hours
- Case Size: 42mm diameter
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995](https://preview.redd.it/zhn4zh2tp40h1.jpg?width=640&crop=smart&auto=webp&s=0309cf974b243bb32197abac2e13781dd87c113a)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995
This is a brand new IWC Portofino Chronograph Black with a 39mm case size, featuring a chronograph function.
- Condition: New condition
- Case size: 39mm diameter
![[WTS] IWC Portofino 150 Years Edition IW356518 Classic, but make it electric](https://preview.redd.it/wmix6ci0h00h1.jpg?width=640&crop=smart&auto=webp&s=a540ad927c814b549ee3de56bd19929a51b2f10c)
IWC Portofino 150 Years Edition IW356518 Classic, but make it electric
This IWC Portofino Automatic 150 Years Edition features a deep blue lacquer dial with a classic design that wears comfortably. It's powered by an automatic movement and is easy to dress up or wear daily.
- Condition: Pre-owned, running strong and keeping good time
- Case size: 40 mm
- Water resistance depth rating: 30 m
- Movement caliber: 35111
![[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995](https://preview.redd.it/791i8rt4lqzg1.jpg?width=640&crop=smart&auto=webp&s=20352f0dafacfc58f44f626b1fd2f294eb2bd818)
2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995
Up for sale is a new IWC Portofino Chronograph Black, a 39mm watch with chronograph functionality.
- Condition: New condition
- Year: 2025
- Case size: 39mm
- Contents: Watch,Box,Travel Case,International Warranty Card,Instructions Manual
![[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
IWC Portofino Automatic 40MM IW356303 Silver Dial
IWC Portofino Automatic 40MM IW356303 Silver Dial is a men's watch with a mechanical automatic movement.
- Condition: 90%
- Size: 40mm diameter
- Case material: Stainless Steel
2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401
This IWC Portofino Hand-Wound Moon Phase features a silver-plated dial with a moon phase display, high-polished stainless steel domed bezel and case, and an exhibition caseback offering a clear view of the movement. It has an 8-day power reserve when fully wound and includes various functions such as hours, minutes, date, small seconds subdial, moon phase display, and power reserve indicator.
- Condition: Mint
- Case Size: 42mm
- Material: stainless steel
- Movement Type: hand-wound