Our SIRIUS is our first model. It has a 43mm surgical grade stainless steel case with 3-pointer movement and a two-layer dial with linear indices. The subdial to 6 o’clock works as a small second. The subdial to 12 o’clock counts the minutes in conjunction with the stop function, while the stopped seconds are displayed by the large second hand. By using Quick-Release pins, the watch strap can be exchanged in a breath against any 22 mm wide strap.