35100

About the IWC 35100

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 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 is the same base in the larger Portofinos and the Mark XVIII, and the 32111 the in-house five-day movement that succeeded the family.