The Portugieser Perpetual Calendar Tourbillon Edition “150 Years” Fake Watches is significant because it is the first time IWC has combined a perpetual calendar with a tourbillon on the dial. The watch comes in a 45mm wide Portugieser-style case, which IWC fans will instantly recognize from its distinctive short and curved lugs as well as the chunky knurled crown. Paired with a black Santoni alligator strap and water resistant to just 30m, it goes without saying that it should be kept away from water.

The dial is white and features a lacquered finish with large black Arabic numerals printed in the signature font of IWC Portuguese Replica Watches. Sizable heat-treated leaf-shaped hour and minute hands and a simple railroad-style minutes track ensure time can be easily read.At 9 o’clock, you have the sub-dial that indicates the day, and at 3 o’clock you have the sub-dials that show the date and power reserve. At 6 o’clock, there’s a month indicator and moon phase display, and to the left of it at around 8 o’clock you have the year indicator. Finally, there’s the flying tourbillon that makes a single rotation every minute at 12 o’clock.

The movement within is the self-winding IWC caliber 51950, which is based on the Caliber 51900 found in IWC tourbillon Copy watches like the Portugieser Tourbillon Mystère Rétrograde but with the ingenious 82-part perpetual calendar module developed by Kurt Klaus. This movement also features IWC’s Pellaton winding system and has a generous power reserve of 168 hours, or 7 days. It is visible through a sapphire display caseback and comes with a special commemorative 18k gold rotor.

The other tourbillon watch that IWC has specially prepared for its 150th anniversary is the Portugieser Constant-Force Tourbillon Edition “150 Years.” This comes in a slightly larger 46mm wide Portugieser style case Charming IWC Watches and is only available in platinum. Water resistance is a mere 30m, and the watch comes paired with a black alligator strap by Santoni.

The movement in this piece is the hand-wound IWC caliber 94805, which beats at a leisurely 2.5Hz and features 96 hours of power reserve. The movement can be admired through a sapphire display caseback and features an inlaid insignia that celebrates the 150th anniversary of the brand.