Damasko Watch DC 80 LHV Black Leather Pin DC 80 LHV Black Leather Pin. LEFT HAND VALVE. A new chronograph line based on the DAMASKO chronograph calibre C51 is heralded with the DC8X series. A criterion of this development is to increase the readability of the chronograph functions significantly. Here, the historic Lemania 5100 movement acted as a role model. The main focus of the new line is on the technical realisation of a springing 60 stop minute display from the centre. Thanks to this new, patented design, it is possible to record stop times even more easily, accurately and quickly. It offers two key advantages, 60 minutes, instead of the usual 30 minutes, are counted in a hand revolution and the allocated minute stop scale can be seen across the full face diameter.