Gustav Becker from Freiburg in Silesia, Germany, was a well-known manufacturer of clocks (grandfather clocks, wall clocks, alarm clocks, etc.), but also made a few pocket watches with their own movement. This one is the subject of this article.
Guba in Ellmendingen near Pforzheim was a German manufacturer of watch movements about which hardly anything is known. Here we take a look at the little that is known.
The history of Guba Uhrenrohwerke (watch movements) began in 1924, when the goldsmith Hermann Friedrich Bauer and his sons founded a company in Pforzheim to manufacture gold watch straps, followed a little later by gold watch cases.
Every quartz watch has a jumping second, so the second hand always moves in whole second increments. This is in contrast to the mechanical watch, where the oscillation frequency of the balance determines how many small steps the hand takes between two second strokes. In classic movements, it’s 18,000 bph (beats per hour), which results in five steps per second; in the more modern 28,800 bph of an ETA 2824-2, it’s eight. This is called sweeping second.