The PCA2000 and PCA2001 are CMOS integrated circuits for battery operated wrist watches with a 32 kHz quartz crystal as timing element and a bipolar 1 Hz stepping motor. The quartz crystal oscillator ...
The PCA2000 and PCA2001 are CMOS integrated circuits for battery operated wrist watches with a 32 kHz quartz crystal as timing element and a bipolar 1 Hz stepping motor. The quartz crystal oscillator ...
Wristwatch enthusiasts can be persnickety. They often have strong opinions about whether bezels should be bidirectional. They can cite the differences between ETA and Sellita movements. They will ...
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