Key functions and clarity are the all-important features of the 240 St. With its classic design based on traditional styles, the 43 mm diameter 240 St is distinguished by those unique characteristics which mark it clearly as a Sinn watch. 

These include a resistance to low pressure and pressure resistance up to 10 bar. The interior pilot’s bezel with luminous triangular main marker enables precise monitoring of defined periods of time. The case made of bead-blasted stainless steel features a sapphire crystal glass. Perfect readability, even at night, is ensured by the luminous hands and indices. The 240 St also features the date and weekday, which can be displayed in German or English simply by adjusting the crown.