The Seestern Chronograph S443 (Dive Bezel) is a 40 mm watch from the Chronograph collection. Its stainless steel case is 13 mm thick and 48.6 mm from lug to lug, with 20 mm lugs. It is water resistant to 50 m. The crystal is sapphire.

The manufacturer’s list price is US$265. It comes in 2 versions, with blue and black dials.