This is the Vulcain Nautical Steel timepiece which we shot earlier this year at Baselworld. It comes in a 42 mm diameter steel case with a tall vintage style box crystal on the front and a triple steel case back. It is powered by a Cricket Caliber V-10 alarm movement. Functions includes hours, minute, seconds, alarm and a rotating decompression table which is controlled by a screw-locked crown at 4 o’clock. The alarm can be used underwater and is audible down to the timepiece’s maximum depth rating of 300 meters.