Typer af armbåndsures hænder og dets produktionsproces
Ordinary watches, low and medium-grade watches, alarm clocks, quartz clock hands are made of aluminum. The high-grade ones are made of brass, bronze, stainless steel, gold, or alloy materials.
All About Chronograph Watches-What? How? Types of chronograph?
A chronograph, or Chrono watch, is a watch with a stopwatch function. The chronograph movement has a ticking sound, a tachymeter。A standard watch indicates the passing of time continuously. A chronograph is different in that it can record the length of any period at will。