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

IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC - IW459604 · $8,200

A limited edition IWC Portofino Automatic Moon Phase watch with a striking and elegant design, featuring a moon phase display and a bespoke snake-shaped solid gold rotor.

Condition: Great condition
Case size: 37.1mm diameter
Thickness: 11.3mm
Water resistance: ~50m (5 bar)

Posted at

Mar 21, 2026, 3:36 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 blue dial in a 40mm case. It includes inner & outer IWC boxes, manual, and warranty card.

Condition: Very good, with a few microscratches on the caseback and clasp
Box set included: Yes
Warranty expiration year: 2028

Posted at

Mar 20, 2026, 10:23 AM

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IWC Portofino Automatic Moon Phase 40mm IW459402

IWC - IW459402 · $5,750

2020 IWC Portofino Automatic Moon Phase in 40mm stainless steel with blue dial and moon phase display.

Condition: Very Good to Excellent pre-owned
Movement: automatic movement
Material: stainless steel
Case size: 40mm

Posted at

Mar 16, 2026, 8:11 PM

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IWC Portofino Chronograph 39mm Black Dial IW391404

IWC - IW391404 · $5,750

2021 IWC Portofino Chronograph in 39mm stainless steel features a stunning, classic combination of black dial with gold hands and markers. A slim automatic chronograph, beautifully proportioned dress watch.

Condition: Very Good to Excellent pre-owned
Year: 2021
Material: stainless steel
Size: 39mm diameter

Posted at

Mar 16, 2026, 2:22 PM

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IWC Portofino Automatic Moon Phase Limited Edition Year of the Snake Ref IW459604 37mm Full Kit 2025 $8,200

IWC - IW459604 · $8,200

A limited edition IWC Portofino Automatic Moon Phase watch with a 37mm stainless steel case, burgundy/red dial, and moon phase display. It features an 18k 5N gold snake-shaped rotor and comes with two quick-change calfskin straps.

Condition: great condition
Case size: 37.1 mm
Thickness: 11.3 mm
Dial color: burgundy/red

Posted at

Mar 13, 2026, 9:14 PM

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IWC Portofino Automatic Moon Phase 40mm Blue Dial IW459402 Complete

IWC - IW459402 · $4,950

A blue dial IWC Portofino Automatic Moon Phase in 40mm diameter, features an automatic movement.

Condition: In very good condition, rated at 9.5/10
Caseback scratches: a few microscratches
Clasp scratches: a few microscratches
Included items: Inner & outer IWC boxes, manual, and warranty card

Posted at

Mar 13, 2026, 10:29 AM

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IWC Portofino Chronograph 39mm - Warrantly until 2030

IWC - IW391406 · $5,200

The IWC Portofino Chronograph 39 combines a classic design with sportiness in a compact case size of 39 millimeters.

Case Size: 39mm diameter
Warranty Until: 2030

Posted at

Mar 13, 2026, 10:26 AM

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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

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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

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