Longines “VHP” Very High Precision

European Watch Clock and Jewellery Fair 1986 BF 322
State-of-the-art technology for both the motor and the case. The case of this Longines “Conquest” model blends gold into steel clad in titanium carbide. This alloy is deposited using the physical vapour deposition (PVD) process in the vacuum. The quartz movement is thermocompensated by adding a thermometric quartz, which provides a maximum variation of about one minute in five years. (LONGINES “VHP” Very High Precision)