This is a curious excursion into Russian watches factory “Nika”, which creates watches and jewelry. All starts in the melt shop. The strongest metals alloyed with silver, copper, palladium and nickel. The percentage of gold remaining in the resulting mixture is called “breaking”.
The metal is melted and flows down, leaving a hot strip. Gold is bought by special 12-kg ingots, which cost about.
The inscription “Au 750” in the furnace body means that gold is 750. That is, the material consists of 75% gold and 25% other metals.
In manufacture, the metal passes through the oven, then placed in a mill, where the metal passes between the rollers, achieving some form. Then the cutter leaves it in short pieces. Then the gold pieces go through a process of recrystallization to give high ductility alloy.
With this process, the bars are becoming gradually fine gold ribbons. Thin gold plates come in stamping plant.
All seals used in the details of jewelry and watches are made at a plant in shop floor. You would think that in the stamping shop is noisy, as in other industries related to metal, but it is not. Gold and silver are soft metals, so the room is fairly quiet.
The details are then put in the oven with three chambers with different temperatures. After that, the polishing is almost the final stage of the blank parts just before the finished product.
In the final shape of the finished parts, the watch is submerged in an ultrasonic bath, where the water has a temperature of 80 degrees Celsius. Ultrasound clean dirt from the surface of the box. After all this, comes the assembly. The end result is impressive.