Presenting my latest creation - Aluminum Guilloche

This dial was mad using a sheet of perfect 0.25mm thick aluminum and a custom made blunt conical cutter. The actual depth of the grooves is about .15mm and that depth was achieved 0.04mm at a time. The motion of the table was accelerated and decelerated at the beginning and end of each line which gives the stacked appear acne of tool marks in the corners. This dial will be lumed and installed in on of my 45mm titanium cases with Asian hand wind movement.