but most (all?) of the other modern Sub300 models are? Do I have that right?
Yeah, Poseidon is based on the 1200T which is does not use COSC certified movt.
All the anniversary 300’s using the slimmer case and double bubble crystals are COSC.
Last edited by nitron135; January 18th, 2019 at 22:31.
The Poseidon has an ETA 2824-2 Elaboré grade
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