Hourglass Estate is a boutique Napa Valley producer centered around a tiny, highly regarded estate vineyard located on the boundary between St. Helena and Calistoga, where volcanic soils and warm northern valley conditions produce intensely concentrated Bordeaux varieties. “The Diver Part I” reflects the winery’s modern but terroir-conscious philosophy, blending fruit from select Napa Valley sites to create a wine that balances richness with structural precision and freshness. Hourglass’ meticulous vineyard work and restrained use of oak allow the dark mineral character, layered texture, and polished tannic structure of Napa Valley’s top hillside terroirs to emerge clearly.