IWC Portofino Portofino Automatic Moon Phase 37 Red Gold / Diamond / MOP / Bracelet

Reference IW4590-05

IWC Portofino Automatic Moon Phase 37 Red Gold / Diamond / MOP / Bracelet

About this watch

The IWC Portofino IW4590-05 is a masterpiece of luxury watchmaking, boasting an exquisite mother of pearl dial and gem-set indexes. Its red gold case exudes warmth and sophistication, while the IWC Caliber 35800 movement provides precise timekeeping with a robust reserve of 42 hours. The moon phase complication adds an extra layer of functionality, tracking the lunar cycle with precision. With its elegant design and luxurious materials, this watch is perfect for those who value refinement and understated elegance. Whether you're a seasoned collector or simply looking for a statement piece, the IW4590-05 is sure to impress.

Buy Now on Jomashop

This is an affiliate link

Key Features

IWC Caliber 35800 movement with 42-hour reserve
Exquisite mother of pearl dial with gem-set indexes
Red gold case with sapphire crystal
Water resistance up to 30 meters
Moon phase complication and date display
Luxurious bracelet with red gold links
37mm diameter case strikes perfect balance between presence and delicacy

Specifications

Brand

IWC

Family

Portofino

Model

Portofino Automatic Moon Phase 37 Red Gold / Diamond / MOP / Bracelet

Reference

IW4590-05

Movement

35800

Movement Features

Hours, Minutes, Seconds
Moonphase

Case

Red Gold 37mm

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 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

Active

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

Active

View listing on r/WatchExchange