The new ultra-thin watch and caliber are a spectacular result worth waiting for.   April 22, 2026 Photos by TanTan Wang The new Vacheron Constantin Overseas Ultra-Thin 2500V is a release from the brand at this year's Watches and Wonders that's gotten quite a bit of chatter, deservedly so. After all, it is the brand's thinnest-ever Overseas, thanks to a brand-new in-house movement developed over seven years, which means what I assume to be an ungodly amount of R&D dollars per millimeter shaved. It's also come at a time when Vacheron seems to be really having a moment — the passion I saw amongst Vacheron collectors when I was in Miami last month for the opening of the brand's largest U.S. boutique was very much an exciting sight to see.  But is the final result worth all the effort? Very much so, if we take the new Overseas Ultra-Thin 2500V as an ultra-limited, ultra-expensive halo product to mark the development of this new caliber.…