IWC Portofino Portofino Automatic 37 Stainless Steel / Diamond / Blue

Reference IW4581-11

IWC Portofino Automatic 37 Stainless Steel / Diamond / Blue

About this watch

The IWC IW4581-11 Portofino Automatic 37 Stainless Steel / Diamond / Blue is a masterclass in luxury watch design. This stunning timepiece boasts a refined aesthetic, perfect for both casual and formal occasions. The blue dial radiates calm sophistication, while the gem-set indexes add a touch of opulence. The combination of stainless steel and diamonds creates a match made in heaven. At its core lies the IWC caliber 35111, an automatic movement that's a marvel of engineering. Developed in collaboration with Sellita, this movement is known for its reliability and precision. With a power reserve of 42 hours and a frequency of 28,800 vibrations per hour, you can trust this watch to keep accurate time. The use of stainless steel and sapphire glass makes it built to withstand the rigors of daily life while maintaining its aesthetic appeal. This is more than just a timepiece; it’s a celebration of craftsmanship, elegance, and functionality.

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MSRP: $10,500

Market Price: $5,611

Key Features

Automatic IWC caliber 35111 movement
Stainless Steel case with gem-set bezel
Sapphire glass for scratch resistance
Water Resistance: 30 meters
Date function and analog display
Power reserve of 42 hours and frequency of 28,800 vibrations per hour
Available in a range of sizes to suit various wrist types

Specifications

Brand

IWC

Family

Portofino

Model

Portofino Automatic 37 Stainless Steel / Diamond / Blue

Reference

IW4581-11

Movement

35111

Movement Features

Hours, Minutes, Seconds
Date

Case

Stainless Steel 37mm

Dial Color

Blue

Crystal

Sapphire

Water Resistance

Current Listings

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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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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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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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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IWC Portofino Moonphase 41mm Auto with Box/Papers - IW459402 - Active Warranty until 11/2029

IWC - IW459402 · $12,500

IWC Portofino Moonphase 41mm Auto with box and papers, active warranty until 11/2029.

Case size: 41mm
Water resistance: 30m

Posted at

Apr 17, 2026, 3:32 PM

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IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete

IWC - IW459402 · $4,950

This IWC Portofino Automatic Moon Phase features a 40mm blue dial. The watch is in very good condition, rated at 9.5/10.

Condition: Very good condition, a few microscratches on the caseback and clasp.
Box Count: 2
Movement Type: Automatic

Posted at

Apr 17, 2026, 10:11 AM

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

IWC - IW391036 · $5,095

A 2019 IWC Portofino Chronograph Blue, a 42mm chronograph watch in excellent condition.

Condition: Excellent condition with minimal signs of wear
Case Size: 42mm diameter

Posted at

Apr 16, 2026, 6:46 PM

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

IWC Schaffhausen - IW356504 · $6,999

This IWC Portofino Automatic IW356504 features a 40mm rose gold case and an original brown leather strap. The watch presents in near mint condition with minimal signs of wear.

Condition: Excellent / Near Mint
Case material: Solid 18K Rose Gold
Case size: 40mm
Movement type: Automatic IWC Movement

Posted at

Apr 16, 2026, 10:53 AM

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