Big Pilot's Watch Perpetual Calendar Tourbillon Le Petit Prince

In Context

At 46.2 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 168 hours of reserve puts it well past a weekend — several days off the wrist and it is still going.

IW504803 stands on its own in this catalogue — no other reference here shares its base number. It pairs a blue sunburst dial with a red gold case. It was a limited edition. Beyond the time it carries a perpetual calendar and a tourbillon.

IWC's caliber 51950 is a self-winding movement with tourbillon and perpetual calendar. It is based on the earlier 51900 - with the addition of the module for the calendar.

6 other watches in the library run the IWC 51950.

IWC

Portuguese Perpetual Calendar Tourbillon Armor Gold / Bucherer

IW504-507 · 45 mm

IWC

Portuguese Perpetual Calendar Tourbillon Armor Gold / Blue / Boutique Edition

IW5045-04 · 45 mm

IWC

Portuguese Perpetual Calendar Tourbillon Platinum / Blue

IW5045-06 · 45 mm

IWC

Big Pilot's Watch Perpetual Calendar Tourbillon Le Petit Prince

IW5049-01 · 46.2 mm