IWC Portofino Portofino Automatic 37 Stainless Steel / Diamond / Silver
Reference IW4581-03
About this watch
The IWC Portofino Automatic 37 (IW4581-03) is a luxurious watch that strikes a perfect balance between classic aesthetics and contemporary functionality. With its exquisite design, precision movement, and luxurious materials, this watch is not just a timekeeper; it’s a statement piece. The silver dial, adorned with stick and dot indexes, exudes a timeless charm that appeals to both traditionalists and modern aficionados. The gem-set bezel adds a touch of glamour, making it a perfect accessory for both casual and formal occasions. At the core of this watch is the IWC caliber 35111 movement, an automatic workhorse developed based on the Sellita SW300-1, featuring hours, minutes, seconds, and a date function. The analog display further enhances the classic vibe of the watch, making it easy to read at a glance. With a water resistance rating of 30 meters, this watch is suitable for everyday wear, including splashes of water and light rain. Its lightweight design and slim profile make it incredibly comfortable to wear throughout the day.
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Key Features
- IWC Caliber 35111 Movement
- Stainless Steel Case with Gem-Set Bezel
- Sapphire Glass Crystal
- 30m Water Resistance
- 37mm Diameter and 9mm Height
- Analog Display with Date Function
Specifications
- Brand
- IWC
- Family
- Portofino
- Model
- Portofino Automatic 37 Stainless Steel / Diamond / Silver
- Reference
- IW4581-03
- Movement
- 35111
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Case
- Stainless Steel 37mm
- Dial Color
- Silver
- Crystal
- Sapphire
- Water Resistance
- 30
Current Listings
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