IWC Portofino Portofino Chronograph MecaQuartz Yellow Gold / White / Alligator

Reference IW3731-01

About this watch

The IWC IW3731-01 Portofino Chronograph MecaQuartz is a stunning blend of elegance and engineering prowess. This luxurious yellow gold timepiece features a white dial, stick and dot indexes, and a slim profile that sits comfortably on the wrist. The Jaeger-LeCoultre caliber 631 movement blends quartz precision with mechanical complexity, making it a versatile choice for those who appreciate both style and substance. The chronograph feature allows for precise timekeeping, while the alligator leather strap offers unparalleled comfort and durability. With its versatility and timeless design, this watch is perfect for any occasion, from formal events to casual outings.
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Key Features

  • Yellow gold casing with sapphire crystal
  • Jaeger-LeCoultre caliber 631 movement with quartz precision and mechanical complexity
  • Chronograph function with precise timekeeping
  • Alligator leather strap with unparalleled comfort and durability
  • 30 meters water resistance for everyday wear
  • 35mm diameter and 7.80mm height for a slim profile
  • White dial with stick and dot indexes for easy readability

Specifications

Brand
IWC
Family
Portofino
Model
Portofino Chronograph MecaQuartz Yellow Gold / White / Alligator
Reference
IW3731-01
Movement
631
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
Case
Yellow Gold 35mm
Dial Color
White
Crystal
Sapphire
Water Resistance
30

Current Listings

[WTS] IWC Portofino Perpetual Calendar IW344602 – Rose Gold, 40mm. Mint. Catch and release. Full Set.

IWC Portofino Perpetual Calendar IW344602 – Rose Gold, 40mm. Mint. Catch and release. Full Set.

This IWC Portofino Perpetual Calendar is a stunning example of horological excellence, featuring a 40mm rose gold case and a perpetual calendar complication. It comes with all original packaging and documentation, making it a full set. The watch is in mint condition, indicating it has been well-maintained and protected.

  • Condition: Mint
  • Diameter: 40mm
Posted at
Jun 18, 2025, 2:01 AM
Active
[WTS] IWC Portofino. Automatic. $1650 only..

IWC Portofino. Automatic. $1650 only..

IWC - Portofino Automatic · $1,650
A IWC Portofino automatic watch is being sold with a gorgeous dial.

  • Shipping: Fedex with insurance
  • Global Shipping: accepted
Posted at
Jun 13, 2025, 7:23 PM
Active
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
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
IWC Portofino 18K Rose Gold Grey Dial Eight Days 45mm IW510104

IWC Portofino 18K Rose Gold Grey Dial Eight Days 45mm IW510104

IWC - IW510104 · $8,190
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
Posted at
Mar 6, 2025, 9:28 AM
Active
IWC Portofino Hand-Wound 8 Days Hand-Wound Black Steel 45mm IW510102 Strap

IWC Portofino Hand-Wound 8 Days Hand-Wound Black Steel 45mm IW510102 Strap

IWC - IW510102 · $4,199
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
Posted at
Feb 28, 2025, 7:57 PM
Active
IWC Portofino Automatic White Dial 38mm IW353303

IWC Portofino Automatic White Dial 38mm IW353303

IWC - IW353312 · $2,275
The IWC Portofino Automatic White Dial is a 38mm men's watch with a mechanical automatic movement and date function, housed in a stainless steel case.

  • Condition: 90%
  • Case size: 38mm
  • Movement type: Mechanical Automatic
Posted at
Feb 16, 2025, 8:46 AM
Active
IWC Portofino Chronograph Black Dial Automatic IW391002

IWC Portofino Chronograph Black Dial Automatic IW391002

IWC - IW391002 · $2,990
The IWC Portofino Chronograph Black Dial Automatic IW391002 is a men's watch featuring a stainless steel case and mechanical automatic movement. It has a chronograph function and date display.

  • Condition: 95%
  • Size: 42mm
  • Function: Chronograph ; Date
  • Case Material: Stainless Steel
Posted at
Feb 11, 2025, 10:19 AM
Active
FOST: IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401

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

IWC - IW516401 · $9,785
The IWC Portofino Hand-Wound Moon Phase features a silver-plated dial with a moon phase display, high-polished stainless steel domed bezel, and an exhibition caseback offering a clear view of the movement.

  • Condition: Mint condition
  • Case Material: Stainless Steel
  • Diameter: 40mm
Posted at
Feb 7, 2025, 3:58 PM
Active