The Grand Seiko SLGC006 chronograph embodies precision, refinement, and natural inspiration within the Evolution 9 (E9) Collection.
Its copper-pink dial captures the morning glow of Mt. Iwate, with an embossed ridgeline pattern that reflects the mountain’s contours. Constructed from High-Intensity Titanium with 18k rose gold and ceramic accents, the case balances strength, lightness, and durability. The bracelet and refined proportions ensure both presence and comfort on the wrist.
Powered by the Caliber 9SC5, this Hi-Beat chronograph movement operates at 10 beats per second for outstanding accuracy. Twin barrels provide a 72-hour power reserve, while advanced technologies—including the Dual Impulse Escapement and free-sprung balance—deliver stability and efficiency.
The chronograph mechanism is engineered for reliability: a vertical clutch enables seamless engagement, a column wheel ensures precise operation, and MEMS-fabricated components enhance long-term performance.
Limited to just 300 pieces, this creation unites technical excellence with the artistry of a dial that reflects Mt. Iwate at sunrise, affirming Grand Seiko’s mastery of innovation and design.
The Tentagraph is Grand Seiko’s first automatic high-beat chronograph, powered by the Caliber 9SC5, which builds upon the renowned Caliber 9SA5. As a next-generation sports watch, it combines cutting-edge technology with the striking aesthetics of the Evolution 9 Style. Designed for active use, it offers a remarkable 72-hour power reserve even with the chronograph in operation. Its refined construction enhances readability and functionality, making it an exceptional choice for those who appreciate cutting edge performance and design.
A hallmark of the Evolution 9 Style, the dial features redesigned indexes and hands for exceptional clarity at a glance. Thoughtfully arranged, the hands align precisely with the indexes, while recessed contrasting sub-dials add depth and clarity. Reflecting the morning glow of Mt. Iwate, the copper-pink dial is embossed with a ridgeline pattern echoing the mountain’s natural contours.
Constructed from High-Intensity Titanium with 18k rose gold and ceramic accents, the case balances strength, lightness, and durability. High-Intensity Titanium is not only 30% lighter than stainless steel but also more resistant to scratches, ensuring durability without compromising comfort.
The Tentagraph’s Caliber 9SC5 sets a new standard for high-beat chronographs, combining precision with endurance. Its name reflects its key attributes: a 10-beat-per-second movement, a 72-hour power reserve—even with the chronograph running—and automatic winding. Engineered with a Dual Impulse Escapement and twin barrels, it delivers exceptional accuracy and reliability, making it the longest-running ten-beat chronograph in the industry today.
Free 2-3 Day Shipping
2-Week Returns & Exchanges
Exclusive 6-Year Warranty
Customer Support
Free shipping is 2-3 business days via Fed Ex Signature Required. Orders placed before 2 pm ET are generally processed and shipped on the same business day, and orders placed after 2 pm ship the following business day. Orders are processed Monday – Friday, and orders placed on Holidays will be processed the following business day. Next Day Service can be purchased for $50 and includes Saturday Delivery when applicable. Please see TERMS for more.
Products may be returned to Grand Seiko Boutique Online within 14 days of the delivery date. Option for a return and refund or exchange is possible when the watch is returned in new, unworn condition, with all original contents included in the package. Upon receiving your return, Grand Seiko will verify the condition of the watch. If there are any missing items, damage, or wear found, you may be subject to fees accordingly. Please be sure to remove any jewelry or other watches before trying on the watch to avoid damage. Please do not size the watch if you return it as it will not be considered new. Please contact the Grand Seiko Boutique Online team HERE to initiate a return. Please see the TERMS for more.
Warranty – All Grand Seiko watches come with a 5-year international warranty. Grand Seiko Boutiques and Grand Seiko Boutique Online provide an additional 1-year warranty at no additional charge for a total of 6 years coverage under the limited warranty. Please see the TERMS for more.
Email, Phone, and Live chat info:
Scheduled hours of operation are Mon-Fri 9am-6pm. However, Grand Seiko Boutique teams may be able to assist at other times depending on availability.
Email: boutique.online@grand-seiko.us.com
Phone: 888-300-8463
