Portofino 34 Stainless Steel / Blue / Bracelet

In Context

At 34 mm it is classically proportioned: the size a dress watch was understood to be for most of the twentieth century, and small enough to sit under a cuff. At 8.6 mm thick it is about average for a modern wristwatch. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 42 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

IW3574-13 is one of 15 executions of the IW3574 base reference. Underneath they are the same watch; what separates this one is a blue sunburst dial and a stainless steel case.

IWC

Silver · Rose Gold

IW3574-01 · 34 mm

IWC

Silver · Stainless Steel

IW3574-03 · 34 mm

IWC

Blue · Stainless Steel

IW3574-04 · 34 mm

IWC

Green · Stainless Steel

IW3574-05 · 34 mm

IWC

Silver · Rose Gold

IW3574-06 · 34 mm

IWC

Silver · Stainless Steel

IW3574-08 · 34 mm

IWC

Green · Red Gold

IW3574-09 · 34 mm

IWC

Silver · Stainless Steel

IW3574-10 · 34 mm

+ 6 more variants in this family.

The 35100 is IWC's Sellita SW300 for the Portofino Automatic 34, built by Sellita to IWC's specification like the 35111. It powers 17 watches in this library. The SW300 matches the ETA 2892's dimensions, 25.6 mm across and thin enough for a dress case, and IWC's version runs at 28,800 vph with a 42-hour reserve and 25 jewels, finished and regulated by IWC. It is the movement that gives the 34 mm Portofino a mechanical caliber at a size where many maisons fit quartz. In the library it powers 16 [Portofino](/brands/iwc/portofino) Automatic 34 references, in steel with blue, green and silver dials and diamond bezels, and one Pilot's Watch Mark XVIII, the Hodinkee edition at 39 mm. The [35111](/calibers/iwc-35111) is the same base in the larger Portofinos and the Mark XVIII, and the [32111](/calibers/iwc-32111) the in-house five-day movement that succeeded the family.

16 other watches in the library run the IWC 35100.

IWC

Portofino 34 Stainless Steel - Diamond / Silver / Bracelet

IW6576-01 · 34 mm

IWC

Portofino 34 Stainless Steel / Blue / Mesh

IW3574-04 · 34 mm

IWC

Portofino 34 Red Gold / Silver

IW3574-14 · 34 mm

IWC

Portofino 34 Rose Gold / Silver / Santoni

IW3574-01 · 34 mm