as it is the case for the Urban Jurgensen dial-maker) replicates a pattern that has been engraved on a matrix on a solid silver plate. The machine requires very careful control, the Submariner ref.6204 with a 100-meter water resistance and the Submariner ref.6205 with self-winding movement caliber A.260 and a water resistance of 100 meters. watchesreplica.to There were also no crown guards at the time yet. The FF is considered the first modern dive watch and carried all the design elements we now consider as standard in our modern dive watches (a black dial with contrasting.