IWC Portofino Chronograph Steel — Green Dial | Ref. IW391405

The Portofino has always been IWC's argument for the proposition that tool-watch engineering need not come at the expense of drawing-room poise, and the 39 mm chronograph in stainless steel with a forest-green dial is a particularly persuasive entry. Green dials have re-entered serious horological conversation in recent years, yet IWC's interpretation avoids trend-chasing; the hue here reads as considered and long-lived, a tone that will age alongside the piece rather than date it. Matched with a green alligator leather strap, the chromatic coherence is complete.

Calibre 79350 — an automatic movement housing a column-wheel chronograph with approximately 44 hours of power reserve — resides beneath the 12.7 mm-thick case. IWC's preference for legible sub-register layouts and precise pushers is evident here; the Portofino Chronograph is a working instrument as much as it is an aesthetic object. The convex sapphire crystal with bilateral anti-reflective treatment ensures glare-free reading across conditions.

At 39 mm, the reference occupies a proportional sweet spot increasingly valued by a collecting community that has grown wary of case diameter inflation. The Portofino Chronograph IW391405 represents the house's most refined answer to the gentleman's sports complication: architecturally composed, technically capable, and — at 3 bar water resistance — appropriately suited to the pressures of daily dressed life. For the collector who dresses well and wears a watch that matches the intention, this green dial chronograph is a compelling and uncommon choice.