The Grand Seiko SLGH007 is a 140-piece platinum limited edition created for the company’s 140th anniversary. Its defining feature is a dark, engraved dial inspired by tree rings, paired with the automatic Hi-Beat 36000 Caliber 9SA5. Grand Seiko’s published specifications describe the watch; they do not establish independent hands-on impressions or test results.
Why the SLGH007 was made
Grand Seiko associates the SLGH007 with the 140th anniversary of the company founded by Kintaro Hattori. The U.S. official boutique listing identifies it as a limited edition of 140 pieces. The brand places the design within its Heritage Collection and connects its design language to the Grand Seiko Style established in 1967 with the 44GS. Grand Seiko’s model page describes the watch as bringing heritage together with a contemporary feel.
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What makes its dial distinctive?
The dark dial takes its visual inspiration from the natural patterns of tree rings. Grand Seiko describes a dimensional surface whose subtle changes in depth interact with light. The U.S. boutique listing attributes the wood-grain effect to engraving. That is the brand’s description of the technique, not an independently verified production analysis.
What movement is in the SLGH007?
The watch uses the automatic Hi-Beat 36000 Caliber 9SA5. Grand Seiko says the movement’s efficiency supports an 80-hour power reserve and highlights three developments: a Dual Impulse Escapement, a free-sprung balance and a horizontal gear train. The boutique listing specifies 47 jewels and gives accuracy as +5 to -3 seconds per day “when static.” These are published specifications, not independent timing-test results.
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#1 Best Overall
- See-through case back
- Date display
- Screw-down crown
- 40mm Diameter
- Weight 178.0 g
Grand Seiko SLGH007 specifications
| Specification | Published detail |
|---|---|
| Reference and collection | SLGH007; Heritage Collection on Grand Seiko’s U.S. model page |
| Edition | Limited to 140 pieces, according to the U.S. official boutique listing |
| Case | 950 platinum; 40 mm diameter, 11.7 mm thick and 47 mm long |
| Crystal and caseback | Box-shaped sapphire crystal; 950 platinum caseback with sapphire crystal |
| Strap and clasp | Crocodile leather strap with three-fold clasp; 22 mm lug width |
| Movement | Automatic Hi-Beat 36000 Caliber 9SA5; 47 jewels |
| Power reserve | 80 hours, as stated by Grand Seiko |
| Accuracy | +5 to -3 seconds per day “when static,” per the boutique listing |
| Functions | Time and date |
| Water resistance | 100 m |
| Magnetic resistance | 4,800 A/m |
Dimensions and other specifications above are from the Grand Seiko U.S. official boutique listing; movement and design descriptions also appear on the official model page.
How much does the SLGH007 cost?
The U.S. official boutique page displays a price of USD $59,000 and the wording “Please Inquire About Availability.” This reports the listing as displayed, not confirmed inventory, a transaction price, or the watch’s current secondary-market value. The page is undated; the price and availability wording were accessed in 2026.
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- Three-fold clasp with push button release
- Dual-curved sapphire crystal
- Power reserve display on the back
- Power resrve Approx. 72 hours(3 days)
What the published information does—and does not—tell you
The official pages establish the stated materials, dimensions, movement features, edition size, design intent, price display and availability wording. They do not provide independent wear impressions, comfort assessments, timing results or evidence of present stock. Accordingly, the SLGH007 can be described here through its documented design and specifications, not as a hands-on review.
Quick Recap
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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