
Product Overview
The IWC Portofino Chronograph Automatic Men’s Watch IW391028 is a refined timepiece designed for men who appreciate precision, craftsmanship, and timeless elegance. Part of IWC’s distinguished Portofino collection, this watch blends sporty functionality with classic dress watch aesthetics, making it suitable for both formal occasions and everyday wear. Powered by an automatic movement, it delivers reliable performance without the need for a battery, relying instead on the natural motion of the wearer’s wrist. The sleek silver-tone design, paired with a durable stainless steel construction, ensures lasting appeal and resilience. This model is ideal for collectors and enthusiasts seeking a versatile Swiss-made chronograph with heritage and sophistication.
Key Features
- Automatic Movement: Engineered for precision and reliability, the self-winding mechanism eliminates the need for battery replacements by harnessing kinetic energy from wrist movement, ensuring consistent timekeeping as long as the watch is worn regularly.
- Silver-Plated Dial with Leaf-Style Hands: The elegant silver-plated dial features subtle sophistication, enhanced by silver-tone leaf-style hands that offer clear readability while adding a touch of classic watchmaking artistry.
- Stainless Steel Milanese Mesh Band: Crafted from high-quality silver-tone stainless steel, the milanese mesh band provides a comfortable, secure fit with a smooth, flexible weave that conforms to the wrist. The fold-over clasp ensures easy wear and dependable closure.
- Scratch-Resistant Sapphire Crystal: The front crystal is made from sapphire, one of the hardest materials used in watchmaking, offering exceptional resistance to scratches and maintaining clarity over years of daily use.
- 30 Meters Water Resistance: Rated for 30 meters (100 feet), this watch can withstand splashes, rain, and brief immersion in water, making it suitable for everyday activities like handwashing or light swimming, though not recommended for diving or high-impact water sports.
- Fixed Bezel and Solid Caseback: The fixed bezel maintains a clean, uninterrupted profile, while the solid caseback protects the internal movement and adds structural integrity to the 42 mm case.
Technical Specifications
- Model Number: IW391028
- Case Dimensions: 42 mm in diameter x 13.6 mm in thickness
- Band Width: 20 mm
- Band Type: Silver-tone stainless steel milanese mesh
- Clasp Type: Fold-over
- Dial Color: Silver-plated
- Hands: Silver-tone leaf-style
- Case Material: Silver-tone stainless steel
- Crystal: Scratch-resistant sapphire
- Bezel: Fixed
- Caseback: Solid
- Movement: Automatic
- Water Resistance: 30 meters / 100 feet
- Package Dimensions: 10.2 x 8.25 x 6.5 inches
- Package Weight: 3.13 pounds
- Department: Men’s
- Manufacturer: IWC
- ASIN: B08BG7RBL8
- Date First Available: February 26, 2026
Benefits & Use Cases
The IWC Portofino Chronograph IW391028 is built for men who value both form and function in a single timepiece. Its automatic movement makes it a practical choice for daily wear, as it remains powered through regular use without requiring manual winding or battery changes. The 42 mm case size offers a balanced presence on the wrist—substantial enough to make a statement, yet refined enough for business attire or evening events. The milanese mesh band not only enhances comfort but also adds a vintage-inspired flair that complements the watch’s classic design. With 30 meters of water resistance, it stands up to everyday exposure to moisture, making it suitable for office environments, travel, dining out, and casual weekend activities. The scratch-resistant sapphire crystal ensures the dial stays pristine, even with frequent use. This watch is an excellent choice for professionals, watch enthusiasts, or anyone seeking a Swiss-crafted accessory that transitions effortlessly from day to night.
Important Notes
This watch comes in original packaging with dimensions of 10.2 x 8.25 x 6.5 inches and weighs 3.13 pounds. While it offers 30 meters of water resistance, it is not designed for swimming, snorkeling, or showering—avoid submersion beyond light splashes. For warranty details, customers should refer to the manufacturer’s official policy by clicking the provided warranty link. As a precision instrument, regular servicing by an authorized IWC technician is recommended to maintain optimal performance and longevity. The watch is designed for men and may not be suitable for smaller wrists due to its 42 mm case size.