IWC Portofino Portofino Chronograph MecaQuartz Yellow Gold / White / Alligator

Reference IW3731-01

IWC Portofino Chronograph MecaQuartz Yellow Gold / White / Alligator

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

Current Listings

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

IWC - IW391027 · $4,395

A 2021 IWC Portofino Chronograph White, a 42mm chronograph watch featuring a white dial.

Condition: Excellent condition with minimal signs of wear
Year: 2021
Size: 42mm diameter
Contents: Box, Travel Case, International Warranty Card, Instructions Manual

Posted at

May 14, 2026, 12:48 PM

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

IWC - IW391404 · $5,995

Up for sale is a IWC Portofino Chronograph Black, a 39mm timepiece with chronograph functionality.

Condition: New condition
Year: 2025
Case size: 39mm

Posted at

May 14, 2026, 12:45 PM

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

IWC - IW391027 · $4,395

A 2021 IWC Portofino Chronograph White, a 42mm watch in excellent condition.

Condition: Excellent condition with minimal signs of wear
Case size: 42mm diameter
Shipping method: Fedex
Insurance included: true

Posted at

May 11, 2026, 9:48 PM

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2015 IWC Portofino Chronograph | Complete set | Cheapp

IWC - IW391008 · $3,385

This Portofino is a timeless classic — elegant, refined, and versatile. The chronograph adds useful functionality without detracting from the dress-watch feel, making this a great addition for both daily wear and special occasions.

Condition: Good pre-owned
Case Size: 42mm
Movement: IWC automatic chronograph
Includes: Original IWC box, IWC warranty card, stainless steel mesh bracelet

Posted at

May 10, 2026, 7:18 PM

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View listing on r/WatchExchange