IWC is a genuine manufacture, making some pretty serious timepieces. So when we say that this watch is the most complicated piece to come out of the Schaffhausen watchmaker, you know it isn’t messing around. Enter the Portuguese Sidérale Scafusia.
It would be tempting to start with the basics here, but we’ll jump right into the deep end: every single Sidérale Scafusia is customized for the owner. On the back of the watch you’ll find a star chart packed with information that is specific to a location designated by the customer. This information includes sunrise and sunset times, local and sidereal time on a 24-hour scale, a red circle to indicate the apparent orbit of the sun on the ecliptic, and a yellow ellipse to show the currently visible stars on the chart. There is also a unique perpetual calendar mechanism that displays the exact day of the year and what year in the leap-year cycle the wearer is in. Like we said, this is really serious stuff.
Turn back to the dial side and you’ll find a few more indicators and a prominently displayed tourbillon at 9 o’clock (which also tracks the running seconds). And, as if this wasn’t enough, the tourbillon features a constant force mechanism as well. The main set of hands tracks local solar time, while the 24-hour register at 12 o’clock keeps you up to date on the sidereal time (also known as star time). The 96-hours of power reserve in the manually-wound movement are tracked by a retrograde indicator at 4/5 o’clock.
As you can tell, this is a really complex little machine built for the distinct purpose of astronomical measurements. It is housed in a platinum, red gold, or white gold case that comes in at 46mm. This isn’t small by any means, but there is a lot going on.
Last week’s episode of The Man’s Guide to Haute Horlogerie is all about the Constant-Force Tourbillon, and features this amazing watch. Check out the video here.
You can find all the details on this amazing watch here.
-HODINKEE for IWC Schaffhausen