IWC Portofino Automatic 37
About This Watch
The IWC Portofino Automatic 37 IW458104 is IWC's premier women's timepiece, featuring a diamond-set bezel and mother-of-pearl dial that epitomize feminine luxury. The 37mm case size is perfectly proportioned for slender wrists, while the 9.4mm thickness ensures exceptional comfort and elegance. Sixty-six brilliant-cut diamonds adorn the polished bezel, adding a subtle sparkle that elevates the watch from a simple time-telling instrument to a piece of fine jewelry. The mother-of-pearl dial is unique to each example, as the natural material creates individual patterns of iridescence. Applied rhodium-plated hour markers and slender hands maintain the Portofino's signature minimalism, allowing the mother-of-pearl and diamonds to shine without competition. The caliber 35111 with 120-hour power reserve means this watch is as technically accomplished as any in IWC's men's collection. The blue alligator leather strap adds a pop of color that complements the cool tones of the mother-of-pearl. IWC has historically been perceived as a masculine brand, but the Portofino 37 demonstrates that the manufacture's design sensibility and technical excellence translate beautifully to women's watchmaking. This is a watch for the woman who values substance over branding, craftsmanship over logos.
In-Depth Review
# IWC Portofino Automatic 37
IWC's Portofino collection channels the understated elegance of Italian seaside sophistication, and the 37mm automatic exemplifies this philosophy with remarkable restraint. The stainless steel case measures just 9.4mm thick, positioning it as a genuine dress watch rather than a casual instrument. What distinguishes this model is its commitment to refined details: a mother-of-pearl dial catches light with subtle depth, while the fixed bezel features 66 polished diamonds that contribute visual interest without veering into ostentation. The in-house caliber 35111 movement delivers a practical 120-hour power reserve—exceptional for the category—and the sapphire crystal provides the clarity expected at this price point. That the watch arrived in 2018 speaks to IWC's calculated approach; this is a collection that evolves rather than reinvents itself.
The 37mm Portofino appeals directly to professionals seeking an elevated alternative to sports watches, particularly those for whom dress watches represent daily wear rather than occasional ceremony. Women and men with smaller wrists will appreciate the proportional dimensions, while the leather strap reinforces its positioning as an office-appropriate timepiece. The 30-meter water resistance honestly reflects its designation—splash resistant rather than swim-capable.
In the luxury dress watch segment, the Portofino faces formidable competition. Omega's De Ville models offer comparable sophistication with broader dial options, while Longines' DolceVita collection provides similar proportions at significantly lower price points. That said, IWC's manufacturing transparency and prestige justify the premium, particularly given current secondary market prices hovering near $5,500 against the $7,400 MSRP.
Specifications
Movement
| Movement Type | Automatic |
|---|---|
| Caliber | 35111 |
| Power Reserve | 120 hours |
| Frequency | 28,800 vph |
| Jewels | 25 |
Case
| Case Diameter | 37.0mm |
|---|---|
| Case Thickness | 9.4mm |
| Case Material | Stainless Steel |
| Crystal | Sapphire |
| Bezel | Fixed, polished with 66 diamonds |
| Dial Color | Mother of Pearl |
| Lug Width | 18mm |
| Lug-to-Lug | 44.0mm |
Features
| Water Resistance | 30m / 98ft |
|---|---|
| Bracelet/Strap | Blue alligator leather strap |
| Clasp | Pin buckle |
| Weight | 53g |
| Complications |