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

Reference IW3730-09

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

About this watch

The IWC IW3730-09 Portofino Lady Chronograph MecaQuartz is an exquisite timepiece that embodies style, sophistication, and superb craftsmanship. Its elegant black dial and contrasting yellow gold detailing are a testament to the brand's dedication to creating stunning yet functional watches. The round case, measuring 29 mm in diameter, is compact yet substantial, perfect for those who appreciate a classic look. The combination of stainless steel and yellow gold gives it an air of sophistication, making it versatile enough for both casual and formal occasions. Under the hood, the IW3730-09 is powered by the Jaeger-LeCoultre caliber 631 MecaQuartz, a unique movement that blends the best of both worlds - the complexity of a mechanical chronograph and the precision of quartz. With its comfortable wear, soft leather strap, and water resistance rating of 30 meters, this watch is designed for everyday wear. The IWC IW3730-09 Portofino Lady Chronograph MecaQuartz is more than just a watch; it's a statement piece that will surely turn heads.
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Key Features

  • Jaeger-LeCoultre caliber 631 MecaQuartz movement
  • Stainless Steel / Yellow Gold case material
  • Black dial with stick and dot indexes
  • Water resistance up to 30 meters
  • Soft leather strap for comfortable wear
  • Sapphire crystal glass for scratch-resistant clarity

Specifications

Brand
IWC
Family
Portofino
Model
Portofino Lady Chronograph MecaQuartz Stainless Steel / Yellow Gold / Black / Calf
Reference
IW3730-09
Movement
631
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
29mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
30

Current Listings

[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
A blue-dialed Portofino Chronograph from IWC, featuring a 42mm case size.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 42mm
  • Movement status: Running well
Posted at
Apr 23, 2026, 3:10 PM
Active
View listing on r/WatchExchange
[WTS] IWC Portofino Ref. IW391030 Day-Date Chronograph on Bracelet

IWC Portofino Ref. IW391030 Day-Date Chronograph on Bracelet

IWC - IW391030 · $3,195
This IWC Portofino Chronograph Reference IW391030 features a polished stainless steel case and a classic black dial adorned with rhodium-plated appliqués and sleek leaf-style hands.

  • Condition: Excellent, some light wear
  • Material: Stainless Steel
  • Function: Time, Day & Date
  • Dial color: Black
Posted at
Apr 23, 2026, 2:03 PM
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[WTS] IWC Portofino Automatic IW356504 18K Rose Gold 40MM Silver Dial Automatic

IWC Portofino Automatic IW356504 18K Rose Gold 40MM Silver Dial Automatic

IWC - IW356504 · $6,899
The IWC Portofino Automatic IW356504 is a 40mm watch crafted in elegant 18K rose gold, featuring an original brown leather strap and matching rose gold buckle. The warm rose gold case pairs beautifully with the original factory dial and hands.

  • Condition: Excellent/Near Mint
  • Case size: 40mm diameter
  • Movement: Automatic, IWC Movement
  • Dial: Original Factory Dial and Hands
Posted at
Apr 23, 2026, 12:08 PM
Active
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[WTS] 2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395

2021 IWC Portofino Chronograph White IW391027 42mm Full Set - $4,395

IWC - IW391027 · $4,395
This is a 2021 IWC Portofino Chronograph White, featuring a chronograph function and a 42mm diameter case.

  • Condition: Excellent condition with minimal signs of wear
  • Size: 42mm diameter
  • Year: 2021
Posted at
Apr 19, 2026, 7:11 PM
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[WTS] IWC Portofino Chronograph IW391031 Silver Dial, Full Set 2019

IWC Portofino Chronograph IW391031 Silver Dial, Full Set 2019

IWC - IW391031
Posted at
Apr 19, 2026, 6:17 PM
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[WTS] 2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $5,095

2019 IWC Portofino Chronograph Blue IW391036 42mm Full Set - $5,095

IWC - IW391036 · $5,095
This IWC Portofino Chronograph Blue is a 2019 model, reference IW391036, featuring a blue dial and chronograph function. It's in excellent condition and has been thoroughly tested on a timegrapher.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 42mm diameter
  • Water resistance: 30m depth rating
Posted at
Apr 18, 2026, 5:25 PM
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[WTS] IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,900

IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $7,900

IWC - IW459604 · $7,900
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, a snake-shaped solid 18k 5N gold rotor, and an IWC-manufactured Calibre 32800 automatic movement.

  • Condition: great
  • Case size: 37.1mm
  • Thickness: 11.3mm
  • Dial color: burgundy/red
Posted at
Apr 18, 2026, 2:49 PM
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[WTS] 2022 IWC Portofino Chronograph ref: IW391037 - full set

2022 IWC Portofino Chronograph ref: IW391037 - full set

IWC - IW391037 · $4,998
The IWC Portofino Chronograph IW391037 is a watch that brings together precision and heritage in a design that feels both purposeful and refined. It features a crisp, white dial with deep blue hands on a blue alligator strap, along with three chronograph subdials and the day and date at the 3 o'clock position.

  • Condition: Very good pre-owned condition
  • Case size: 42mm diameter
  • Movement type: Automatic
Posted at
Apr 17, 2026, 5:07 PM
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[WTS] 2019 IWC Portofino Automatic ref: IW356519 - Full set

2019 IWC Portofino Automatic ref: IW356519 - Full set

IWC - IW356519 · $3,598
The IWC Portofino Automatic Edition '150 Years' is a limited jubilee collection edition watch with a 40mm case size, crisp white dial, and date display at the 3:00 position. It features a 42-hour power reserve and 30 meters of water resistance.

  • Condition: Very good pre-owned condition with very faint signs of wear
  • Case size: 40mm diameter
  • Water resistance: 30 meters
Posted at
Apr 17, 2026, 4:46 PM
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