them when I bough the perpetual which I later regretted so much I had to hunt down replacements. Wife kept telling me to not let go. She was right! Each is a joy! ;-) ...
Ludwig Oechslin is one of the titans of horology. The beautiful simplicity of his QP arrangement is astounding. Eight gears that it takes! Date change is not instantaneous, but it works back and forth. See this website to admire simplicity at work: And t...