Hi-Beat 36000 80 Hours SLGH011

Green Birch

Surrounding the new Grand Seiko Studio Shizukuishi in northern Japan are beautiful white birch tree forests. Noted for their distinct coloration and texture, these trees inspire the latest in Grand Seiko's Evolution 9 collection, the Grand Seiko Boutique Online exclusive, SLGH011.

Evolution 9 is the name of Grand Seiko's new design language, first introduced with reference SLGH002 in 2020. With its complex faceted case, large hands, and prominent markers; Zaratsu-polished, distortion-free finish; and highly ergonomic proportions, Evolution 9 will be an essential part of Grand Seiko's collections for years to come.

Boasting a distinct vertical texture, the deep green dial captures the serene mood of the white birch tree forest during summer in Iwate prefecture. The complex dial is pressed several times to create high depth and utilizes more clear coating than found in other Grand Seiko models adding to the depth.

Inside, and first presented in 2020, caliber 9SA5 was developed from the ground up after nine years of development, the endeavor led by movement designer Hisashi Fujieda. 9SA5 is a 10-beat movement boasting 80 hours of power reserve and a precision rate of +5 to -3 seconds a day. It incorporates three important developments: Grand Seiko's new Dual Impulse Escapement, free-sprung balance, and horizontal gear train. Deploying all the skills and experience gained over the past six decades, Grand Seiko created what is beyond a doubt the finest mechanical caliber in its repertoire.