Caliber 9R31
Manual-winding Spring Drive
A manual-winding Spring Drive caliber made in the Shinshu Watch Studio, 9R31 has an innovative dual-spring barrel that contains two mainsprings set in parallel and delivers a power reserve of 72 hours.
This limited edition commemorates the 20th anniversary of Grand Seiko's original Spring Drive movement, Caliber 9R, which was created in 2004.
The Hotaka mountain range rises majestically in the Shinshu region of central Japan, the birthplace of all Grand Seiko Spring Drive creations. The gradation on the dial reflects the moment when the sun begins to rise. As the steep landscape of the Hotaka mountain range turns a vibrant red, the light casts a radiant glow on the autumn leaves as they emerge from the darkness of dawn. This beautiful scenery is expressed by the dark red color at the dial’s periphery gradually becoming brighter toward the center.
It delivers a power reserve of 72 hours thanks to the manual-winding Caliber 9R31 with an innovative dual-spring barrel that contains two mainsprings set in parallel.
| Case | Stainless steel |
| Case Size | 38.5mm |
| Movement | Spring Drive Manual winding |
| Dial | Red |
| Power Reserve | 72 hours |
| Water Resistance | Splash resistant |
| Bracelet | Crocodile leather |
| Buckle | Three-fold clasp with push button release |
| Warranty | 5 years |
Shipping
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Complimentary Two-Day Shipping on purchases over $100. Order processing can take up to 3-5 business days.
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We currently only ship domestically within the United States. Orders ship Monday through Thursday, excluding public holidays, via standard overnight service with signature required, per our insurance policy. Shipping delivery must be confirmed by the recipient in order to ship out the order. If a package is undeliverable and returned to us, additional shipping charges may apply for reshipment.
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Shipping fee for watch straps and accessories is flat $35. Please note: all watch parts are FINAL SALE.
Inspection Upon Delivery
Please carefully inspect your package at the time of delivery. If the outer packaging appears damaged, opened, resealed, punctured, or otherwise tampered with, we kindly ask that you refuse delivery. Please inform the carrier that you are declining the shipment due to suspected damage or tampering.
If possible, take clear photographs of the package—showing the condition of the box, shipping label, and any visible damage or broken seals—before returning it to the carrier.
Please note that by accepting the package, you acknowledge that the outer box appears intact and untampered with at the time of delivery.
Exchanges & Store Credit
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Eligible items may be exchanged or returned for store credit within 3 business days of receipt. No refunds.
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To request an exchange or store credit, contact Customer Service at customerservice@chpremier.com or reply to your confirmation email to initiate the process.
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Items marked “Final Sale”, including all watch parts, promotional/discounted merchandise, and financed purchases (e.g., Affirm, Shop Pay Installments), are not eligible for return, exchange, or store credit.
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Returns due to change of mind or buyer’s remorse will not be accepted.
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Merchandise must be in original, unworn condition, with the protective blue tag attached. Items showing signs of wear, alteration, or damage will not be accepted.
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A shipping and restocking fee applies to all approved returns/exchanges.
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We reserve the right to refuse any return that does not meet the above requirements.
Our online policies may differ from our in-store policies. The above terms apply only to online purchases.
Caliber 9R31
Manual-winding Spring Drive
A manual-winding Spring Drive caliber made in the Shinshu Watch Studio, 9R31 has an innovative dual-spring barrel that contains two mainsprings set in parallel and delivers a power reserve of 72 hours.
