The Grand Seiko Kodo Constant-Force Tourbillon was such a hit that they decided to make a sequel. Okay, that’s not totally accurate. 2022’s unexpected breakout watch did get a new version just two years later, but rather than a sequel, it’s more of a redux—a different take on the same story. A director’s cut?
For those who need a recap, however, the Grand Seiko Kodo Constant-Force Tourbillon was nothing short of complete and utter shock when first unveiled, even though there had already been a teaser trailer (I’m going to try to keep this movie thing up) in the form the T0 concept movement. While known for its finishing, spring drive, and high-beat movements, Grand Seiko was not considered a manufacturer of high-end complications. As such, even though it was a concept movement, the T0, which unveiled a novel constant-force tourbillon, took everyone by surprise.