Grand Seiko: A Constant Force in Watchmaking

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Grand Seiko: A Constant Force in Watchmaking

Post by koimaster » April 10th 2022, 11:06am

During the past six decades, Grand Seiko has constantly been pursuing the creation of the world’s most accurate wristwatch, pushing the development of quartz, mechanical and Spring Drive movements. Now, the Japanese
giant is ready to finally enter the haute horlogerie segment.

In September 2020, Seiko Watch Corporation revealed the T-zero Constant-force Tourbillon (abbreviated as “T0”) as a concept creation of Grand Seiko. It is the world’s first watch movement with a fully integrated constant-force mechanism and a tourbillon on the same axis, aiming to create a mechanical watch with the highest accuracy (and prestige) possible. The constant-force mechanism provides an even energy distribution to the escapement, regardless of how much the mainspring is wound, and the tourbillon aims to eliminate the error in precision caused by gravity by incorporating the escapement parts and balance in a rotating carriage. ... tchmaking/


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