Ref 210000007863 · Certified Authentic
Grand Seiko Tentagraph (SLGC001)
$9,795In Stock — Ready to Ship
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Pre-Owned 43.2mm Grand Seiko Tentagraph (SLGC001) Grand Seiko’s Tentagraph SLGC001 marks the brand’s first-ever mechanical chronograph, introduced in June 2023 as part of its Evolution 9 Collection. The name “Tentagraph” cleverly combines k
100% Authentic & Certified
2-Year Warranty
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Easy 14-Day Returns
Product Details
| Brand | Grand Seiko |
|---|---|
| Reference / SKU | 210000007863 |
| Gender | Men's |
| Movement | Automatic |
| Case | Titanium 43mm |
| Bezel | Ceramic, Tachymeter |
| Crystal | Sapphire |
| Dial | Blue |
| Bracelet / Strap | Titanium, Bracelet |
| Crown | Screw Down |
| Caseback | Exhibition |
| Complication | Chronograph, Date |
| Condition | Pre-Owned |
| Box & Papers | Box and Papers |
| Working Condition | Inspected and keeping accurate time. |
| Authenticity | Certified authentic by the WatchDealHub in-house team of specialists. |
| Warranty | Factory Warranty |
| Photographs | All photographs are of the actual watch for sale. |
MovementAutomatic
CaseTitanium 43mm
DialBlue
ComplicationChronograph, Date
About This Timepiece
Pre-Owned 43.2mm Grand Seiko Tentagraph (SLGC001)
Grand Seiko’s Tentagraph SLGC001 marks the brand’s first-ever mechanical chronograph, introduced in June 2023 as part of its Evolution 9 Collection. The name “Tentagraph” cleverly combines key features: Ten (beats per second), T for its three-day power reserve, Auto, and graph for chronograph.
At its heart is the in-house Caliber 9SC5, built on the 9SA5 platform—running at 5 Hz (36,000 vph)—and thanks to a Dual Impulse Escapement plus twin barrels, it delivers a full 72-hour power reserve even with the chronograph running. This made it the longest-running 10-beat chronograph in the industry at the time of release. The movement incorporates a vertical clutch and column wheel, with meticulous finishing visible through the exhibition caseback.
The 43.2 mm case (15.3 mm thick) and matching bracelet are crafted from high-intensity titanium—around 30% lighter and more scratch-resistant than steel—and paired with a black ceramic tachymeter bezel. The textured deep blue dial features Grand Seiko’s signature Mt. Iwate pattern, inspired by the ridged contours of the mountain seen from their Shizukuishi studio. Recessed sub-dials at 3, 6, and 9 o’clock add depth and clarity, while a date window at 4:30 preserves the symmetry of the hour markers.
Accuracy is rated between –3 to +5 seconds per day, backed by a rigorous 20-day testing process that includes performance with the chronograph engaged. Despite its bold size, the titanium construction and ergonomic design help maintain comfort on the wrist.
At launch, it was priced around $13,700 and released as a boutique-exclusive model. This watch from 2023 comes complete with box and papers. The Tentagraph stands out as a technical milestone for Grand Seiko and a serious contender in the high-end chronograph category.
The watch you see is the watch you receive — authenticity guaranteed.
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2-Year Limited Warranty
Coverage against movement defects for two full years from delivery, at absolutely no cost to you.
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What the 2-Year Warranty Covers
If your watch develops a fault in its movement as a result of a manufacturing or mechanical defect under normal use within two years of delivery, we will repair or service it — or arrange an equivalent remedy — at no cost to you. If your watch is gaining or losing time, or not keeping proper time, contact our specialists and we will guide you through a safe, fully-insured return for service.
Covered
- Movement & mechanical defects
- Automatic winding faults
- Timekeeping outside tolerance
- Manufacturing defects
Not Covered
- Accidental or impact damage
- Water damage from improper use
- Unauthorised repairs or servicing
- Normal wear to straps, crystals & externals
Warranty Terms
The WatchDealHub warranty is non-transferable and valid for the original purchaser. Purchasing as a gift? Let our team know when you order and we will register the recipient as the original purchaser. Pre-owned and vintage watches are sold in the condition described on their product page; where an additional manufacturer or service warranty applies, it is noted with the listing.
Questions about coverage? Read our full warranty and authenticity guarantee, or speak with a specialist.
WatchDealHub.com offers free, fully-insured shipping worldwide. Every order is dispatched via secure, fully-tracked courier and requires an adult signature on delivery — so your timepiece is protected from our door to yours.
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Complimentary, fully-insured shipping on every order — domestic and international.
Fast Dispatch
Orders are prepared and shipped within 1–2 business days of cleared payment.
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Discreet, secure packaging and an adult signature on delivery for your protection.
Shipping Options
| Method | Delivery Time | Cost |
|---|---|---|
| Insured Standard (Tracked) | 2–5 business days | Free |
| Expedited Delivery | 1–2 business days | Quoted at checkout |
| International Insured | Varies by destination | Free |
Processing & Tracking
Orders are prepared and dispatched within 1–2 business days after payment clears. You will receive tracking details by email the moment your watch ships, so you can follow it every step of the way.
Customs & Duties
International buyers are responsible for any import duties or taxes levied by the destination country; these are not included in the purchase price.
Not the right watch? Return it within 14 days of delivery for a full refund under our Returns & Refunds Policy, or contact a specialist with any question.
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Certified Authentic
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Learn More →Expert-Inspected
Each timepiece is examined and tested in-house — movement, case, dial, and serials — before it is photographed and shipped to you.
Learn More →2-Year Warranty
Every watch is covered against movement defects for two years, with free, fully-insured worldwide shipping and easy 14-day returns.
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