Helgray - Powered by the Time Module (Seiko) VK64 meca-quartz chronograph movement, the Silverstone Green is a timeless piece. https://www.helgray.com/collections/silverstone/products/silverstone-green #Silverstone #Green #Helgray | Facebook
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3 very cool automotive inspired quartz chronographs to get! – KaminskyBlog
WHAT TWEAKS MY TOURB: The Seiko VK64 mechaquartz chronograph movement - Time and Tide Watches
Chronography 8: Meca-Quartz—Is It Really the Poor Relation? - Worn & Wound