IWC Portofino Portofino Lady Chronograph MecaQuartz Stainless Steel / Black / Calf

Reference IW3730-05

IWC Portofino Lady Chronograph MecaQuartz Stainless Steel / Black / Calf

About this watch

The IWC Portofino IW3730-05 is a stunning example of luxury watchmaking, combining elegance with functionality. This MecaQuartz chronograph features a compact 29mm stainless steel case, scratch-resistant sapphire glass, and a black dial adorned with stick and dot indexes. The Jaeger-LeCoultre caliber 631 movement showcases intricate engineering, providing exceptional accuracy and smooth chronograph function operation. With its lightweight case and soft calf leather strap, this watch is comfortable for all-day wear, fitting seamlessly into any occasion. Whether you're looking for a statement piece or a practical timepiece, the IWC Portofino IW3730-05 perfectly embodies the spirit of leisurely luxury.
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Key Features

  • 29mm stainless steel case
  • Scratch-resistant sapphire glass
  • Jaeger-LeCoultre caliber 631 MecaQuartz movement
  • Chronograph function with smooth operation
  • Comfortable lightweight design
  • Black calf leather strap
  • Water resistance of 30 meters

Specifications

Brand
IWC
Family
Portofino
Model
Portofino Lady Chronograph MecaQuartz Stainless Steel / Black / Calf
Reference
IW3730-05
Movement
631
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Stainless Steel 29mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] 2018 IWC Portofino Chronograph 42mm Ref IW391008 | Box & Papers

2018 IWC Portofino Chronograph 42mm Ref IW391008 | Box & Papers

IWC - IW391008 · $3,700
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
Posted at
May 9, 2026, 7:37 PM
Active
View listing on r/WatchExchange
[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

IWC - IW391404 · $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
Posted at
May 9, 2026, 11:19 AM
Active
View listing on r/WatchExchange
[WTS] IWC Portofino 150 Years Edition IW356518 Classic, but make it electric

IWC Portofino 150 Years Edition IW356518 Classic, but make it electric

IWC - IW356518 · $2,480
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
Posted at
May 8, 2026, 9:03 PM
Active
View listing on r/WatchExchange
[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $5,995

IWC - IW391404 · $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
Posted at
May 7, 2026, 11:48 AM
Active
View listing on r/WatchExchange
[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795

2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795

IWC - IW391404 · $6,795
2025 IWC Portofino Chronograph Black in new condition, a 39mm chronograph watch.

  • Condition: New condition
  • Case Size: 39mm diameter
Posted at
May 2, 2026, 12:09 PM
Active
View listing on r/WatchExchange
[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995

2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $4,995

IWC - IW391036 · $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
Posted at
Apr 30, 2026, 9:48 AM
Active
View listing on r/WatchExchange
[WTS] 2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795

2025 NEW IWC Portofino Chronograph Black IW391404 39mm Full Set - $6,795

IWC - IW391404 · $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
Posted at
Apr 30, 2026, 9:44 AM
Active
View listing on r/WatchExchange
IWC Portofino Automatic 40MM IW356303 Silver Dial

IWC Portofino Automatic 40MM IW356303 Silver Dial

IWC - IW356303 · $2,080
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
Posted at
Apr 8, 2025, 8:48 AM
Active
View listing on RolexForums
2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401

2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401

IWC - IW516401 · $8,875
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
Posted at
Apr 2, 2025, 5:33 PM
Active
View listing on RolexForums