Grand Seiko Announces Limited-Edition Kodo Constant-Force Tourbillon Watch

When Grand Seiko first announced its T0 constant force tourbillon concept movement in 2020, it immediately caused a stir in the enthusiast community despite not being fitted to a watch. Not only was this Grand Seiko’s first-ever tourbillon, it was also the brand’s first constant force mechanism, and the first movement in the world to […]

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