The mens IWC Portuguese Perpetual Calendar BTQ replica edition is no exception. The watch makes use of an in-house manufactured caliber 51613, which famously maintains accuracy for more than half a century before needing adjustment. As was the case in the ‘30s and ‘40s, IWC still places a premium on supremely accurate mechanisms within its most complicated of timepieces.

Fast forward to today, and IWC’s Portuguese family is home to the astonishingly accurate Perpetual Calendar Boutique Edition. To accomplish this, IWC (then operating under the full “International Watch Company” moniker) turned to a pocket watch movement set within a hunter style case to allow crown placement at 3 o’clock as well as provide the desired levels of accuracy.

IWC Portuguese Perpetual Calendar replica watch

IWC Portuguese Perpetual Calendar replica watch

The first Portuguese dates back to 1939, a solution for two Portuguese business men were looking for a IWC Portuguese Perpetual Calendar copy wristwatch that could match the precision of a marine chronometer.  IWC’s Portuguese line of watches holds a prestigious and significant place in the brand’s history.

Setting itself apart within the Portuguese collection, the Perpetual Calendar BTQ edition is offered in a 44.2mm stainless steel case with a stunning silver-plated dial. The moonphase display is pewter in color, complimenting the subtle nature of the dial. Contrast is provided by distinctive red hands at use within the subdials at 3 and 9 o’clock reading the runnings seconds as well as the power reserve indication.

In the Portuguese, the perpetual calendar complication is integrated seamlessly, retaining the brilliant functionality while refusing to compromise on simplicity, and formal practicality.

The Ref 502308 is limited to just 500 examples, can can only be purchased at official IWC boutiques around the world. It represents an exceedingly special variant of an already special IWC Ref 502308 replica watch, and its limited nature makes it a surefire collectors item with real world usability

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