Entrepreneur Alexander Orlov spotted wearing a Jacob & Co

Alexander Orlov, the Russian entrepreneur and noted horological collector, was recently photographed wearing what may be the single most complex watch ever spotted casually at a reading table: the Jacob & Co. Astronomia Tourbillon Grand Complication in black ceramic, a piece limited to 18 examples worldwide and priced at approximately $650,000. The sighting, understated in setting but extraordinary in detail, confirms Orlov's place among a very small global circle of collectors who treat six-figure grand complications as daily wear.

The Jacob & Co. Astronomia Tourbillon — reference AT100.21 in its black ceramic configuration — houses the in-house JCAM09 movement, a manually wound calibre beating at 18,000 vph with a 60-hour power reserve. Its defining complication is a four-arm rotating carrousel that completes one full revolution every 10 minutes: one arm carries a three-axis tourbillon cage rotating every 60 seconds on its primary axis, a second arm supports a hand-painted blue Earth globe rotating on its own axis every 60 seconds, a third presents a faceted diamond sphere standing in for the moon, and the fourth bears the time display. The entire assembly rotates above a deep-blue aventurine dial — a deliberate evocation of interstellar space — enclosed in a 47mm case machined from black DLC-coated ceramic with a domed sapphire crystal providing a planetarium-like viewing experience.

For serious collectors, the Astronomia Tourbillon Black Ceramic occupies a unique position: it is one of the few contemporary grand complications that demands technical respect while simultaneously functioning as wearable sculpture. The 18-piece limitation is not marketing artifice — the movement's hand-finishing and assembly genuinely constrain output. Each piece takes months to complete in Jacob & Co.'s Geneva atelier.

Alexander Orlov's choice reflects a collector sensibility that prizes mechanical narrative over institutional prestige. Wearing a Jacob & Co. rather than a Patek or a Lange signals deliberate iconoclasm — an embrace of American-founded, Geneva-executed watchmaking that the old Swiss establishment still views with some ambivalence.

On the grey market, examples of the Astronomia Tourbillon in black ceramic rarely surface; when they do, transaction prices have been reported north of $700,000, confirming that the 18-piece edition holds — and in some cases exceeds — its official retail value.