IWC Portofino Portofino Automatic Moon Phase 37 White Gold / Diamond / Black
Reference IW4590-04
About this watch
The IWC Portofino IW4590-04 is a stunning luxury watch that combines elegance and functionality in a way that few watches can. At its heart lies the IWC caliber 35800 movement, a masterpiece of horological engineering that's both self-winding and precise. The watch radiates opulence with its gem-set bezel and sapphire glass, while the black dial is both functional and stunning. The feuille hands add a classic touch, sweeping across the dial with precision. A nod to celestial mechanics, the moon phase indicator at 12 o'clock whispers secrets of the universe. Perfectly sized for both men and women, this watch adapts seamlessly to any occasion. With its high-quality leather strap and secure buckle, it's designed for those who appreciate fine craftsmanship. The Portofino collection is a celebration of Italian coastal town's timeless charm and laid-back elegance, captured in IWC's designs that are both sophisticated and versatile.
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Key Features
- IWC caliber 35800 movement
- White gold construction with gem-set bezel
- Sapphire glass for durability and scratch resistance
- Black dial with gem-set indexes and feuille hands
- Moon phase indicator at 12 o'clock
- Leather strap with secure buckle
- 30 meters water resistance
Specifications
- Brand
- IWC
- Family
- Portofino
- Model
- Portofino Automatic Moon Phase 37 White Gold / Diamond / Black
- Reference
- IW4590-04
- Movement
- 35800
- Movement Features
-
- Hours, Minutes, Seconds
- Moonphase
- Case
- White Gold 37mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
IWC Portofino Pointer Date 39mm
A 39mm IWC Portofino Pointer Date in excellent condition, featuring a full set from 2023 and one minor scuff on the bezel.
- Condition: Excellent
- Case Size: 39mm diameter
- Movement Type: Automatic
- Warranty Left: 6 years

Pre-Owned IWC Portofino Automatic Edition '150 Years' IW356518
This pre-owned IWC Portofino Automatic Edition '150 Years' is a limited edition of 2,000 pieces. It features an automatic movement, 40mm stainless steel case, blue dial, and black leather strap.
- Condition: 81% - with marks on the lugs, bezel, and case
- Movement: Automatic
- Case size: 40mm diameter
- Material: Stainless Steel
IWC Portofino Automatic 40MM IW356303 Silver Dial
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

2024 IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401
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
IWC Portofino 18K Rose Gold Grey Dial Eight Days 45mm IW510104
The IWC Portofino is a men's watch featuring a grey dial and 18K rose gold case, with a size of 45mm. It has a mechanical manual movement and functions include date and power reserve.
- Condition: 90%
- Case material: 18K Rose Gold
- Movement type: Mechanical Manual
- Size: 45mm
IWC Portofino Hand-Wound 8 Days Hand-Wound Black Steel 45mm IW510102 Strap
The IWC Portofino Hand-Wound 8 Days is a pre-owned watch with a black steel case, featuring an IWC hand-wind movement and 45mm diameter. It comes with an IWC box, papers, and a brown leather strap.
- Condition: Excellent
- Case material: Stainless Steel
- Crystal type: Sapphire
- Movement type: Hand Wind
IWC Portofino Automatic White Dial 38mm IW353303
The IWC Portofino Automatic White Dial is a 38mm men's watch with a mechanical automatic movement and date function, housed in a stainless steel case.
- Condition: 90%
- Case size: 38mm
- Movement type: Mechanical Automatic
IWC Portofino Chronograph Black Dial Automatic IW391002
The IWC Portofino Chronograph Black Dial Automatic IW391002 is a men's watch featuring a stainless steel case and mechanical automatic movement. It has a chronograph function and date display.
- Condition: 95%
- Size: 42mm
- Function: Chronograph ; Date
- Case Material: Stainless Steel

FOST: IWC Portofino Hand-Wound Moon Phase Silver Steel FULL SET MINT IW516401
The IWC Portofino Hand-Wound Moon Phase features a silver-plated dial with a moon phase display, high-polished stainless steel domed bezel, and an exhibition caseback offering a clear view of the movement.
- Condition: Mint condition
- Case Material: Stainless Steel
- Diameter: 40mm