Portuguese Perpetual Calendar 5022 Platinum / Silver

In Context

At 42.3 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 15.6 mm it is a tall case, and it will catch on a cuff. 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. 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. 168 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 18,000 vph the seconds hand advances 5 times a second, the slower and more audible rate of an older design.

IW5022-19 is one of 4 executions of the IW5022 base reference. Underneath they are the same watch; what separates this one is a silver dial and a platinum case. It was a limited edition. Beyond the time it carries a perpetual calendar.

Replacement for 50610, in turn replaced by 51613. Automatic movement with seven days of power reserve and perpetual calendar.