They utilise a Ronda 715li movement.

These watches are closely based on a case design by the famous Swiss case making firm MRP S.A, other than a few minor updates the case is much the same as in the late 1970s, MRP was named after its founders M archand, R oth and P etignat, it was founded in 1953 and bought by Georges Hauert in 1979.

It'-s interesting that very few people realise how historically significant this case pattern is nor how well it has stood the test of time having been in continuous production for over 40 years.

The PVD finish is often specified in military contracts for many special forces units as well as by anti-terrorist units and for various covert operations. In the PVD process, the steel is not black all the way through because the colour is created by a special chemical PVD plating process which is vastly superior to the painted finish used on some lower quality watches which can easily fade or rub off. This PVD process means that the colour of the steel is altered at a molecular level, therefore it will not deteriorate even during heavy usage although it can be destroyed if the case is badly damaged by a piece of metal being gouged out or if the case is worn down by really heavy abrasion against rocks or something similar.