BOSS gents watch from the Aero Collection. Featuring a 44mm stainless steel case, black matte dial, and black leather strap. Water resistant to 20ATM. A masculine chronograph to take you into the skies and beyond. The pilot-inspired functionalities of this watch include a slide-rule bezel and two matching logarithmic scales - one stationary, the other rotating - to make a host of multiplication, division and conversion calculations possible. A retrograde chronograph movement including a date display defines the bold design.