IWC Schaffhausen continues to celebrate its 150th anniversary in 2018. Most recently a new edition was added to their “Portugieser” model line. At first glance this platinum model, looks almost identical to previous editions. But, they’ve swapped calibers for this new “IWC Portugieser Perpetual Calendar Platinum”.


Image courtesy of: IWC

One of the main novelties on this “Portugieser” is it being the first in the current collection to be paired with Kurt Klaus’s perpetual calendar mechanism. We must recall that the Klaus perpetual calendar was engineered to track the: days, date, and month without needing to be reset until the year 2100. It was originally conceived and included in the more modest Valijoux 7750 caliber movement, but IWC now presents it as their in-house caliber 52615.


Image courtesy of: IWC

The 44.2mm case that houses the novel caliber is made out of platinum with a transparent case back, which allows to view the inner workings of the mechanical movement. Behind the exhibition case back are visible scattered jewels and an 18k rose gold rotor with the IWC logo and a “7 DAYS POWER RESERVE” engraved inscription.


Image courtesy of: IWC

It comes equipped with a setting-crown that has also been pre-programmed to be in sync with the calendar, but it can only wind forward. So, if the calendar is advanced beyond the current date, resetting it will require a trip to the service center. A convenient feature that can also become a costly hassle if the user were too mistakenly over wind. All topped by a sapphire crystal that assists with water-resistance on this watch reaching up to 30 meters (98 feet).


Image courtesy of: IWC

Time is exhibited on a silver dial with platinum applied Arabic numerals and central hands; plus a rail-road motif ring of smaller minute index markers, with a slightly larger marker for every 5-minute increment. There are also four sub-dials: a calendar with a 7-day power reserve in its midst at the 3 o’clock position; a month dial at the 9 o’clock position; a day of the week dial with a sub-seconds in its midst; and a double Moonphase indicator at the 12 o’clock position.


Image courtesy of: IWC

The Moonphase here is represented in a darker blue with platinum colored stars and two synchronized Moonphases, one for each hemisphere with an “N” and “S” marking for “North” and “South” by them. There is also a four-digit year display located between the 7 and 8 o’clock positions.

COVER-IWC-Portugieser-Perpetual-Calendar-Platinum-EiT - Copy

Image courtesy of: IWC

IWC Portugieser Perpetual Calendar Platinum

This “IWC Portugieser Perpetual Calendar Platinum” (Ref#: IW503406) is powered by self-winding mechanical movement, caliber 52615 with 54 jewels and 28,800 Vph. Power reserve on this watch can last up to 168 hours (7 days) when fully wound. The movement has been outfitted with ceramic components to ensure a long-term durability.


Mounted to the watch is a black alligator strap by Santoni, secured to the wrist via a platinum deployment buckle. This is a limited edition of only 250 manufactured pieces. For more up to date information visit the official IWC Schaffhausen website here.

MSRP: $53,300.00 USD


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Written by Mauro Az