Grand Seiko Hi-Beat vs Spring Drive (Part 3)
Seiko Presage vs Grand Seiko, Image source: Horology House
When Grand Seiko is in question, there are no doubts that movements in each watch released under the brand are superior, because they follow the high, so called GS standards that all Grand Seiko watches much satisfy. But not all Grand Seiko movements are equal and our goal is to discuss some of the types of movements on the mechanical side, with Spring Drive being its hybrid.
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