The following in-house movements were included: 25-66 (manual winding Ref. Furthermore a Chronometer version of 18 karats of yellow gold was available (reference 5880 300). The gold coated version was marked by a 06 instead of a 01 in the reference number. There were two different case materials to choose from: Stainless steel and gold plaque. Originally the dial was available in 15 different versions. The floating mount of the movement by means of a rubber ring was taken from its predecessor. In order to increase robustness the movement fixation was additionally strengthened by extra-strong screws. Apart from the more formal novelties the model featured a few technical innovations: The crown was partially hidden and posessed a double sealing system. Below you’ll find an original article on the launch of the DS-2 taken from Certina’s proprietary magazine called “Certina Echo” (Winter Edition 1968). By that time more than 300’000 pieces of the DS had already been sold. The DS-2 was introduced to the market in 1968 as a successor to the successful DS line that was launched in 1959.
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