SEIKO VK63 Chrono issue?

I have a VK63 chrono and the issue that I'm having is that when I push the chrono buttons, nothing happens, the chrono does not start?! However, if I unscrew the crown and then use the chrono buttons, it works perfectly. Is this a VK63 thing? Any help would be grateful. Thank you

Reply
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Try resetting, unscrew the crown push top and bottom Chrono pushers together at same time for 5 seconds, release screw in crown and see if that helps.

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I have a Brew Metric with a VK68 mecha-quartz movement, and it doesn't have that strange behaviour. Perhaps the following link may be beneficial:

https://www.hirschuhren.com/wp-content/uploads/2018/09/S-VK67-English.pdf

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Thank You. I've recently replaced the battery and I think that has something to do with it.

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I have a watch with a vk63 movement as well, the chrono function seems to be non-functional. Any tips or tricks that could get it working? The watch itself seems to be functional and the smaller seconds hand is running... Any help would be much appreciated. Thanks!