I have got a couple of Seiko watches and I think none of them meet COSC standards but I'm glad to say that Seiko keeps good time though .
Not as accurate as Rolex, Zenith as I would expect .COSC is not a deal breaker to me otherwise I would not buy Seiko at all
You can also look at Mido watches less pricey than Tissot and owned by same Swiss conglomerate as Tissot
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