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| 1971 | On February 11th, the 'Arctos Quarz' produced by Arctos-Uhrenfabrik Philipp Weber KG Pforzheim, is introduced at a press conference during the Hannover Fair. This was the first German prototype quartz watch. The Germans presented a prototype with an IC by Motorola (ITT) and a frequency of 16 kHz. |
| 1972 | Just before Christmas, a small number of watches, caliber 375, are available for sale. Mass production started in 1973. Six different models in steel (no. 375 51), two goldplated (no. 375 21), three made of gold and one made of white gold (nos 375 11 and 375 12) leave the assembly-line. The watches have a frequency of 32 kHz. The quartz crystal had been developed by Siemens, Germany; the mechanical parts by Durowe and the batteries by Varta, Germany. |
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