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Collections Evolution 9 Collection Hi-Beat 36000 80 Hours SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 Shirakaba
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 on wrist
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 dial
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 movement Caliber 9SA5
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Caliber 9SA5.
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 dial
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 Shirakaba
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 on wrist
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 dial
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 movement Caliber 9SA5
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031
Grand Seiko Caliber 9SA5.
Grand Seiko Hi-Beat 36000 80 Hours White Birch Ever Brilliant Steel Watch SLGH031 dial

Hi-Beat 36000 80 Hours SLGH031

Grand Seiko Evolution 9 Collection
USD $10,200
Ships October 2026
Find a Store
Out of Stock

Features

A Hi-Beat 36000 with 80 hours duration, Inspired by the dynamic vitality of white birch forests.

Inspired by the serene white birch forests surrounding the Grand Seiko Studio Shizukuishi, this Grand Seiko luxury watch features a finely textured dial in a luminous silvery-white hue that captures the natural beauty and movement of the forest landscape. The design reflects the purity and elegance of birch trees that flourish near Grand Seiko’s luxury mechanical watchmaking studio, creating a refined, nature-inspired aesthetic. 

At its core is the Grand Seiko-exclusive Hi-Beat Caliber 9SA5, an advanced automatic mechanical movement engineered for exceptional precision and performance. Featuring the innovative Dual Impulse Escapement and twin-barrel construction, it operates at a high frequency of 36,000 vibrations per hour while delivering an impressive power reserve of approximately 80 hours when fully wound.

The case and bracelet are crafted from Ever-Brilliant Steel, a variation of "super stainless steel" alloy known for its brilliant luster and superior corrosion resistance. The bracelet design has been equipped with a more dramatic taper and micro-adjustable clasp to enhance wearing comfort without use of tools.

Combining cutting-edge mechanical innovation, high-end materials, and nature-inspired design, this Grand Seiko Hi-Beat luxury timepiece exemplifies the artistry and precision of Japanese watchmaking for discerning collectors.

Case
Case Material : Ever Brilliant Stainless Steel
Case Diameter : 40mm
Case Thickness : 11.7mm
Case Length : 47mm
Lug Width : 22mm
Dial Color : White
Crown : Screw Down
Strap/Bracelet : Ever Brilliant Stainless Steel w. three-fold clasp and micro-adjust
Crystal : Box-Shape Sapphire
Caseback : Ever Brilliant Stainless Steel with Sapphire Crystal
Movement
Caliber : 9SA5
Type : Hi-Beat 36000
Power Source : Automatic
Jewels : 47
Accuracy : +5 to -3 seconds per day (when static)
Duration : 80 Hours
Functions
Features : Time, Date
Water Resistance : 100m
Magnetic Resistance : 4,800 A/m
Grand Seiko Evolution 9 Collection
The Evolution 9 collection embodies Grand Seiko’s pursuit of the ultimate practical watch. Rooted in the Grand Seiko Style established by the 1967 44GS, this design code has evolved to enhance aesthetics, legibility, and comfort while adapting to modern active lifestyles.
Evolution 9 Style

Born from the relentless pursuit of the perfect luxury timepiece, the Evolution 9 Style embodies a refined design language that builds upon the iconic Grand Seiko Style established in 1967. Blending contemporary horological innovation with the brand’s rich heritage, the Evolution 9 collection represents a bold evolution in Japanese watchmaking, delivering exceptional legibility, comfort, and craftsmanship while remaining true to the enduring principles of Grand Seiko.

White Birch

Inspired by the majestic white birch forests of Iwate Prefecture, home to the Grand Seiko Studio Shizukuishi, this iconic dial showcases the celebrated White Birch pattern, capturing the depth, texture, and vitality of Japan’s natural landscape. The silvery-white dial reflects the beauty of towering birch trees, while the tempered blue seconds hand adds a striking contrast, animated by Grand Seiko’s precision high-beat mechanical movement.

Micro-Adjust Clasp

The bracelet's newly developed three-step micro-adjustment clasp enables tool-free sizing in 2mm increments, ensuring a perfect and comfortable fit on the go.

Ever-Brilliant Steel

Ever-Brilliant Steel, a superior alloy of stainless steel is renowned for both its brightness and its exceptional resistance to corrosion. This advanced material not only ensures lasting durability but also enhances Grand Seiko’s renowned Zaratsu polishing, allowing the case to display a distortion-free mirror finish that plays beautifully with light and shadow.

Hi-Beat 36000 Caliber 9SA5

The exceptional Caliber 9SA5 is a high-beat movement operating at 36,000 vibrations per hour with an impressive 80-hour power reserve. Its Dual Impulse Escapement and twin-barrel design enhance efficiency, while the finely finished surfaces echo the rippling waves of the Shizukuishi River, seamlessly blending technical mastery with artistic elegance.

Grand Seiko’s Boutique Online Services
Free 2-3 Day Shipping
2-Week Returns & Exchanges
Exclusive 6-Year Warranty
Customer Support
Free 2-3 Day Shipping

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.

2-Week Returns and Exchanges

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.

Exclusive 6-Year Warranty

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.

Customer Support

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 



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We're Updating: Shipping Delays
While we’re updating our system, all orders placed between March 28 and April 5 will not ship until after April 5. Thank you for your patience and understanding.