Best butterfly clasp ever

The Zodiac Super Sea Wolf has hidden springs inside the butterfly clasp that allows the bracelet to expand and contract with your wrist size during the day. It's the most comfortable butterfly clasp bracelet I've ever worn (and I've worn a lot). There are at least a dozen different takes on tool-less micro-adjust mechanisms in tri-fold clasps, but the only place I've ever seen this spring design is on Zodiacs. I'm sure they patented it, but I don't know why more brands haven't tried to do a variation on it like they have with the tool-less micro-adjust.

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Thank you for sharing, that’s fantastic news 🏆

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Also JLC Polaris and Vacheron 56 clasps have this feature. Really cool.

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I want to say whoever did the original Doxa bracelets had this trick too. I thought it was Kreisler but I'm not finding search hits.

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Please share with Grand Seiko they seem to be flumexed with this problem 🙄