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Rapper Offset spotted wearing Jacob & Co

On his birthday, rapper Offset — born Kiari Kendrell Cephus — was photographed wearing one of the most extreme haute horlogerie pieces available to civilian buyers: the Jacob & Co Astronomia Sky in platinum, reference AT110, a watch limited to just 18 examples worldwide.

The Astronomia Sky AT110 is built around Jacob & Co's proprietary JCAM09 manual-winding movement, a 60-jewel caliber beating at 21,600 vph with a 60-hour power reserve. The dial architecture is anything but conventional. Four arms rotate around the central barrel on a 10-minute cycle, carrying a triple-axis tourbillon, a 288-facet Jacob-cut diamond rotating on its own axis, a time display sphere, and a hand-painted rotating Earth crafted in miniature with extraordinary geographic detail. Above the Earth, a domed sapphire hemisphere maps the northern celestial sky, completing one full sidereal rotation annually — 365 days, 6 hours, 9 minutes, and 9.5 seconds. The case in solid platinum measures 47mm, water-resistant to 30 metres.

The Astronomia family, launched by Jacob Arabo's Manhattan-based house in 2014, was designed explicitly to do things no traditional Swiss maison would sanction — movement architecture as kinetic sculpture, watch-as-theatre. The AT110 platinum variant represents the line's technical and material zenith. With production capped at 18 pieces, it qualifies as a genuine ultra-limited complication, a category where Patek Philippe and A. Lange & Söhne typically reign but where Jacob & Co has carved a legitimate niche through sheer mechanical ambition.

Offset has been one of hip-hop's most consistent watch collectors, moving well beyond the diamond-bezel Rollies that define the genre's baseline. His Astronomia Sky sighting signals an appetite for complex, conversation-stopping horology rather than simple flex. At a UK list price of £530,000 — translating to approximately $665,000 at current exchange — this is not a watch you acquire casually.

On the grey market, ultra-limited Jacob & Co platinum complications command premiums that reflect both scarcity and the house's growing collector credibility. With only 18 references AT110 in existence, resale liquidity is naturally thin, but when examples do surface, they rarely trade below retail. As hip-hop's taste in watchmaking continues to mature, sightings like this accelerate Jacob & Co's repositioning from celebrity jeweller to serious independent watchmaker.