The Tsao Baltimore Founders Edition Emerald Sunray is a 42 mm watch from the Founders Edition collection. Its stainless steel case is 14 mm thick and 50 mm from lug to lug, with 20 mm lugs. It is water resistant to 100 m. The crystal is sapphire.

The manufacturer’s list price is US$425. It comes in 3 versions, with black and brown dials.