[VIDEO] Grand Seiko Introduces the Tentagraph “Tokyo Lion”
When the Tentagraph was introduced at Watches & Wonders a few years ago, it was, in its way, a pretty radical idea. Grand Seiko, somewhat surprisingly, had never developed a mechanical chronograph to that point, and the high frequency movement at work in the Tentagraph was and is a significant accomplishment. For Watches & Wonders 2025, Grand Seiko has introduced a new spin on the Tentagraph that is perhaps as equally radical as the introduction of the first Tentagraph in 2023. The new Tokyo Lion Tentagraph (reference SLGC009) puts the Tentagraph into a new context entirely, using what might be Grand Seiko’s most avant-garde and aggressive case shape. The “Lion” chronographs, which have previously only existed with Spring Drive movements, are characterized by a 43mm titanium case with around 40 facets. That, folks, is a lot of facets, and with the Grand Seiko’s zaratsu polishing applied liberally throughout, it’s one of the most dynamic and intriguing cases in their catalog. It’s also, of course, not for everyone. The severe case lines might be a bit of an acquired taste, and the whole thing has an almost M.C. Escher-like quality about it. As someone who personally struggled with geometry in middle school, this case, when I first saw it, gave me no shortage of anxiety. Over the years though, as I’ve had more experience handling these complex cases, my appreciation has grown, and the Tokyo Lion Tentagraph jumped out to me as one of the more special release...
![[VIDEO] Grand Seiko Introduces the Tentagraph “Tokyo Lion”](https://wornandwound.com/library/uploads/2025/04/GS_WW_Tentagraph_030.jpg)
