IWC Schaffhausen
Introducing the IWC Portugieser Constant-Force Tourbillon
But that creation was quite the special timepiece, which bore a perpetual calendar — with leap year display and absolute day of the year — a celestial chart showing horizon, ecliptic and celestial equator, display of day, night and twilight, plus sunrise and sunset on its caseback.
All of this was created specific to the customer’s desired location, accurate to 20 meters of the exact location. The movement in question — the IWC caliber 94900 — was essentially the pairing of a base module with an added module that brought the astronomical indications into the watch.
The Portugieser Constant-Force Tourbillon does, however, still retain some of the Sidérale Scafusia’s customizability options. These include two case material choices — platinum and red gold — and four dial choices per case type. Further personalization include, caseback engravings (within IWC’s corporate guidelines) and lastly, an endless array of custom leather straps courtesy of IWC’s partnership with Santoni.
From your first point of contact with the brand, to initiate your made-to-order Portugieser Constant-Force Tourbillon, to delivery, the entire process is said to take just about three months. For more information, get in touch with the IWC retail concierge here.
Technical Specifications
Movement
IWC Manufactured Calibre 94800, manual wound movement; hours and minutes; power reserve display (96 hours); double moon phases for the northern and southern hemisphere; tourbillon with constant-force mechanism built into tourbillon cage
Case
46mm; red gold or platinum;
Strap
Santoni alligator leather strap with folding clasp
