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Hello everyone,I would like to share a very unusual "Okeah" (Item 731) chronograph that has some mind-boggling features. I’ve been researching it for a while and would love to hear your expert opinions.
The Highlights:
-The Movement: It’s a "sterile" (no logos/markings) 17-jewel 3133. The level of finishing is remarkably high—much better than standard mass-produced 80s movements. It features high-quality radial grinding and neat anglage (beveling), reminiscent of the early Valjoux 7734…
Mystery "Okeah": High-grade sterile 17-jewel 3133 movement. Prototype or early ZIM?
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