The Mission Timer made of Submarine Steel.

The U2 series takes all the familiar advantages of the SINN diving watches to an entirely new level. Reliable at depths up to 2,000 meters. Equipped with a second time zone. Functions reliably at temperatures between -45 and +80 °C. Confirmed and certified.

U2 (EZM 5)
U2 S (EZM 5)
U2 SDR (EZM 5)