I’m only a beginner and have a lot to learn still. I have started with the round Seiko. Dissembled and cleaned all the parts. So far so good. The others just needed a clean and new batteries.
Thanks for that info. My research came up with the same. It was cased in Melbourne buy Handley and from what I can work out it’s a caliber 59. I’ve attached some photos of movement and case back.
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