The Stratographe is Blacksand’s first chronograph and uses the distinctive case of the Uniformity model launched last year. It is a monopusher chronograph that comes with either a tachymeter scale for measuring units per hour or a pulsometer scale for measuring heart rates.

Significantly, the Stratographe uses the first Blacksand calibre that has been entirely designed, developed and assembled in-house. Blacksand CAL 2002 is a manually-wound column-wheel chronograph movement that operates at 28,800 vibrations per hour and has a 50-hour power reserve. The chronograph function is operated by a single pushbutton located in the crown at 3 o’clock.

Blacksand has also taken the unusual step of labelling the individual elements of the chronograph mechanism, so that the wearer can clearly follow the action of the components through the transparent sapphire crystal case back as the chronograph is operated.

In addition to the signature Blacksand purple design elements on the ends of the central chronograph seconds hand, the date window and the contrasting purple stitching on the leather strap, the Stratographe has an openworked dial with two ceramic inserts. Three different versions are available, with the case in titanium with ceramic inserts or in titanium with 18-carat white or pink gold inserts.