IWC Portofino Portofino Chronograph MecaQuartz Stainless Steel / White / Calf

Reference IW3731-07

IWC Portofino Chronograph MecaQuartz Stainless Steel / White / Calf

About this watch

The IWC Portofino Chronograph MecaQuartz stands out as a timeless piece that marries functionality with style. With its impressive movement, elegant design, and comfortable wear, it's a worthy investment for anyone serious about horology. The Jaeger-LeCoultre caliber 631 is a true marvel of engineering, combining the accuracy of quartz with the functionality of a mechanical chronograph. This MecaQuartz movement offers incredible accuracy, making it perfect for timing events or coordinating meetings. The watch features a beautifully polished stainless steel case and a clean, crisp white dial with classic stick and dot indexes. The chronograph sub-dials add functionality without cluttering the face, creating an overall aesthetic that strikes a perfect balance between sophistication and sportiness. With a water resistance of 30 meters, this watch is suitable for everyday wear and can handle splashes and brief immersion. If you're a watch enthusiast who appreciates the blend of classic design and modern technology, the IW3731-07 is for you.

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Key Features

Jaeger-LeCoultre caliber 631 movement
Quartz accuracy combined with mechanical functionality
Elegant stainless steel case
Clean white dial with stick and dot indexes
Chronograph sub-dials for added functionality
Water resistance of 30 meters
High-quality calf leather strap

Specifications

Brand

IWC

Family

Portofino

Model

Portofino Chronograph MecaQuartz Stainless Steel / White / Calf

Reference

IW3731-07

Movement

631

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph

Case

Stainless Steel 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

Active

View listing on r/WatchExchange

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

Active

View listing on r/WatchExchange

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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View listing on r/WatchExchange

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