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] IWC Portofino Moonphase 41mm Auto with Box/Papers - IW459402 - Active Warranty until 11/2029](https://preview.redd.it/iohvjmbhvsvg1.jpg?width=640&crop=smart&auto=webp&s=6fda11e5385e43fe46606cdbfbc70c14ee133da1)
IWC Portofino Moonphase 41mm Auto with Box/Papers - IW459402 - Active Warranty until 11/2029
IWC Portofino Moonphase 41mm Auto with box and papers, active warranty until 11/2029.
- Case size: 41mm
- Water resistance: 30m
![[WTS] IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete](https://preview.redd.it/jhm87dsmdrvg1.jpg?width=640&crop=smart&auto=webp&s=eb158cca1ab5b410ecab3ef7f6e07065cda0e2a3)
IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete
This IWC Portofino Automatic Moon Phase features a 40mm blue dial. The watch is in very good condition, rated at 9.5/10.
- Condition: Very good condition, a few microscratches on the caseback and clasp.
- Box Count: 2
- Movement Type: Automatic
![[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $5,095](https://preview.redd.it/b06dxcsismvg1.jpg?width=640&crop=smart&auto=webp&s=e757ab4457105738562d5136cd71aafef5073408)
2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $5,095
A 2019 IWC Portofino Chronograph Blue, a 42mm chronograph watch in excellent condition.
- Condition: Excellent condition with minimal signs of wear
- Case Size: 42mm diameter
![[WTS] IWC Portofino Automatic IW356504 18K Rose Gold 40MM Silver Dial Automatic](https://preview.redd.it/mo7nahj5gkvg1.png?auto=webp&s=72c51c3ac8b99d914233661964ca16f2ba5e2379)
IWC Portofino Automatic IW356504 18K Rose Gold 40MM Silver Dial Automatic
This IWC Portofino Automatic IW356504 features a 40mm rose gold case and an original brown leather strap. The watch presents in near mint condition with minimal signs of wear.
- Condition: Excellent / Near Mint
- Case material: Solid 18K Rose Gold
- Case size: 40mm
- Movement type: Automatic IWC Movement
![[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200](https://preview.redd.it/fpuw5ipolsug1.jpg?width=640&crop=smart&auto=webp&s=160fdaec95ad30a138e6cd93e64cfb7492080b43)
IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200
A limited-edition IWC Portofino Automatic Moon Phase watch with a 37mm polished stainless steel case and burgundy/red dial. The watch features a moon phase display, sapphire crystal, and exhibition caseback.
- Condition: great condition
- Case Size: 37.1 mm
- Thickness: 11.3 mm
- Dial Color: burgundy/red
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
IWC Portofino 18K Rose Gold Grey Dial Eight Days 45mm IW510104
The IWC Portofino is a men's watch featuring a grey dial and 18K rose gold case, with a size of 45mm. It has a mechanical manual movement and functions include date and power reserve.
- Condition: 90%
- Case material: 18K Rose Gold
- Movement type: Mechanical Manual
- Size: 45mm
IWC Portofino Hand-Wound 8 Days Hand-Wound Black Steel 45mm IW510102 Strap
The IWC Portofino Hand-Wound 8 Days is a pre-owned watch with a black steel case, featuring an IWC hand-wind movement and 45mm diameter. It comes with an IWC box, papers, and a brown leather strap.
- Condition: Excellent
- Case material: Stainless Steel
- Crystal type: Sapphire
- Movement type: Hand Wind