Born in 1904 for an aviator who wanted the time without letting go of the controls, the Santos made the men’s wristwatch cool and gave the world its first true pilot’s watch. Square when the world was round, it still looks futuristic today. Few designs stay this cool for a hundred years, yet this one does it easily.

Presents itself in mint condition with little to no signs of wear. Set against the light, the large graduated blue dial melts from bright sky blue at the center to deep midnight at the edges, changing its mood with every turn of the wrist. Framed by brushed and mirror-polished steel, the case turns sporty one second and dressy the next. Bolted down by eight exposed screws, the bezel turns hardware into high jewelry and gives the whole face its unmistakable signature.

Functions include hours, minutes, seconds, and date. The seven-sided crown, set with a faceted blue spinel, pulls to two clicks: the first quick sets the date, the second stops the seconds to nail the exact time. After a long rest, wind it gently, set the date to yesterday, then walk the hour hand past midnight to reach today’s date and time without forcing anything backward. Powered by the automatic caliber 1847 MC, it holds around 40 hours of reserve and stays confident in water to 100 meters. Swapping the bracelet for a strap takes one push with QuickSwitch, while SmartLink adds or removes links by hand with no tools.

Comes as a complete set, double-boxed with a warranty certificate and instruction booklets.

Silver Santos are everywhere, so this deep blue turns the aviation icon into something you rarely see twice on the same wrist. For the collector who wants the watch that started it all, just in the color everyone quietly hunts for, this is the one to reach for. A blue dial this clean is the kind of piece you hold onto.