Review
Pkonos introduces the Grand Seiko Tentagraph SLGC009, a timepiece that initially presented an unconventional aesthetic but ultimately captivated him. This article explores the unique design choices and technical innovations that define this Grand Seiko chronograph, offering insights into its polarizing yet compelling presence on the wrist. Pkonos's personal journey with the watch highlights how initial skepticism can evolve into appreciation for a truly distinctive creation.
I had my fair share of misgivings about this most unconventional of GSs when I first saw press photos of it a few months ago (as I suspect did a good many others), but once lured into its danger-laden lair (that would be the nearby AD, with full GS selection : ) while waiting for the Mrs. to finish with her shopping, I was like a wildebeest that’d strayed from the herd.
Unfairly hobbled with credit-card plastic in pocket, easy prey.
Here’s a shot of the TLT’s massive and polarizing Brilliant Hard Titanium alloy case and wild dial :
On the wrist, the TLT feels hefty, but also snug and balanced, thanks to its curved case back and a rubber strap so supple I almost feel tempted to chew on it (emphasis on almost).
The unapologetic, Japanese smorgasbord of design elements gives the TLT an aura and presence on the wrist of that I find captivating in the metal, and one that, in a fun way, stands out head-and-mane (sorry) from over a half-dozen or so other GSs I already have in the menagerie.
Other TLT info:
- 9SC5 caliber high-beat (36,000 bph) automatic with dual escapement, free-sprung balance wheel, twin barrels; modular chronograph with column wheel and vertical clutch construction; 72-hr. power reserve
- 43mm case, 15.6mm (!) thickness, and display back; proprietary Brilliant Hard Titanium alloy (harder than GS’ Bright Titanium and 2x harder than SS)
- Screw-down crown, 200m water resistance
- Rubber strap with titanium deployant clasp and (in perhaps a seldom seen playful twist by GS’ designers) 2 raised “paw” motifs on the inner side of the strap that help to grip the wrist when worn
The Grand Seiko Tentagraph SLGC009 marks a significant milestone as the brand's first mechanical chronograph, introduced within the Evolution 9 Collection. It embodies Grand Seiko's commitment to precision and practical innovation, developed and manufactured at the Shizukuishi facility, known for its mechanical watchmaking heritage. This model integrates advanced functionality with exquisite craftsmanship, reflecting decades of accumulated know-how.
At its core is the new Caliber 9SC5, a high-beat movement operating at 10 beats per second, based on the revolutionary Caliber 9SA5. This movement features a Dual Impulse Escapement for efficient energy transfer and two barrels, providing a 3-day power reserve even with the chronograph in operation. The Tentagraph undergoes an extended 20-day testing procedure, including three days of chronograph operation, to ensure it meets the Grand Seiko Standard of +5 to -3 seconds per day. The dial features a textured 'Mt. Iwate' pattern.
This reference is notable for its integrated vertical clutch and column wheel, ensuring precise chronograph operation and eliminating hand shudder. The overcoil's shape was optimized through extensive simulations for consistent performance. As a fully integrated manufacture, Grand Seiko maintains in-house control over every component, underscoring the technical prowess and dedication to horological excellence.
While I might not have the wrist to pull it off (says the man who just posted a shot of his 51mm Izul 😂) it does look excellent on you! The case shape is super intriguing and I love the small details like the paw prints on the inside of the strap. How does the thickness affect the wearing comfort? And last but not least - what is the significance of Tokyo Lion? 🦁
Complex and bold, leaves and itch to go back and revisit. Congratulations, enjoy it to the fullest
I haven’t heard anything about it other than “it’s so thick”. To me, it it’s the spiritual descendant of the Seiko Galante series of watches, also Spring Drive powered. And Yes, I did buy this watch and wear it (for awhile), circa 2008. Cheers, Cazalea
The watch feels snug and comfortable on the wrist, but its height certainly isn't conducive to fitting under cuff sleeves and I expect that it will inevitably invite future clashes with door frames and the like! The Lion logo outside of the savannah, let alone in Ginza, has always struck me as a bit odd and misplaced, but apparently the king of jungle was chosen by GS to represent pride and excellence. In GS' own words:"...the lion emblem on the case back reflect[s] the ambition to create the mo
I'm glad you were able to try it on in the metal !
The TLT is undoubtedly thick enough to be off-putting to some, but as a long-time MR-G fan, I'm used to it The Galante line was very cool, as it pushed a lot of design boundaries. In that way, definitely a spiritual ancestor!
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