Portofino Automatic Moon Phase 37 Stainless Steel / Silver

In Context

At 37.1 mm it sits just under the modern norm — the band that suits the widest spread of wrists. At 11.3 mm thick it is about average for a modern wristwatch. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 50 m covers rain and hand-washing comfortably; it is not a watch to swim in.

The movement winds itself from the motion of your wrist. 120 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 28,800 vph the seconds hand advances 8 times a second.

IW4596-01 is one of 2 executions of the IW4596 base reference. Underneath they are the same watch; what separates this one is a silver dial and a stainless steel case. Beyond the time it carries a moon phase.

32800 Calibre IWC-manufactured movement Automatic, self-winding 120 hours Power Reserve 28800.0 (4.0 hz) 186 21 Jewels Côtes de Genève, perlage

3 other watches in the library run the IWC 32800.

IWC

Portofino Automatic Moon Phase 37 Year of the Snake

IW4596-04 · 37.1 mm

IWC

Portofino Automatic Moon Phase 37 Stainless Steel - Diamond / Silver

IW6596-01 · 37.1 mm

IWC

Portofino Automatic Moon Phase 37 Red Gold - Diamond / Silver

IW6596-02 · 37.1 mm