Author: Andreas Kelz

Paul Perret and the Swiss Patent No. 1

The Swiss Industrial Property Office (German: Eidgenössisches Amt für gewerbliches Eigenthum, French: Bureau Fédéral de la Propriété Intellectuelle) was founded on November 15, 1888, with headquarters in Bern, and started operations with only seven employees. Today it is called the Swiss Federal Institute of Intellectual Property (German: IGE = Eidgenössisches Institut für Geistiges Eigentum) and has about 300 employees.

The most famous employee of this office might be Albert Einstein, who started his service in July 1902 at the age of 23 as technical expert third class. But it should not be about him here!

Continue reading “Paul Perret and the Swiss Patent No. 1”

PT5000: ETA 2824-2-Clone of HK Precision Technology

The ETA 2824-2 is probably the most widely used mechanical Swiss movement. Its predecessor, the ETA 2824, came onto the market as early as the beginning of the 1970s, some 50 years ago. Without a doubt a success story!

The patents on the movement have long since expired, so there are many manufacturers who produce clones, i.e. largely 1:1 copies of the ETA 2824-2. In addition to Swiss manufacturers such as Sellita, these include some Chinese companies such as Seagull with the ST2130 or Hangzhou with the 3601.

Hong Kong Precision Technology PT5000

Continue reading “PT5000: ETA 2824-2-Clone of HK Precision Technology”