The IWC Portugieser Chronograph Replica is no space watch, and has no restrictions leveled upon it to maintain its appearance. The watch just works, and IWC knows it.
As these were not in-house calibers, they sat concealed behind a closed caseback. That notwithstanding, IWC Replica Watch is well known for the work it does on its ebauches, often adjusting and regulating non-in-house movements to great levels of accuracy and performance.
In the years since the release of the IWC Portugieser Replica Watch, the watch has become arguably the most popular watch in the Portugieser lineup and can very well be considered an icon in its own right.
Very little has changed about the Fake watch with the release of the updated movement, which is actually a really savvy move by IWC.