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Grand Seiko Heritage Collection
USD $6,300
USA Exclusive Mastershop Model
Available to GS9 Club Members Only


Celebrating the autumnal equinox with Shubun

One of four timepieces in the Japan Seasons Collection, exclusive to the USA

Imagine a cloudy night with a bright moon against the dark fall sky. This scene, in Japanese known as tsukiyo, offers inspiration for the dial of the SBGH273. With its unique texture, subtle coloration, and mesmerizing shimmer, the dial evokes the autumnal equinox by representing clouds as they float through the autumn sky.

The case design also pulls inspiration from a distinct source, this time from Grand Seiko's history. Launched in 1967, the 62GS was Grand Seiko’s first automatic watch. This timepiece gained popularity for its striking design, which featured a mirrored, multi-sided case and wide dial opening made possible via a bezel-free construction. The contemporary interpretation of the 62GS design can be seen here. 

Powering the watch is Caliber 9S85, a sophisticated Hi-Beat movement running at 36,000 bph. This modern movement makes use of innovations to its mainspring, hairspring, and escapement to improve precision. Grand Seiko manufactures this movement at Studio Shizukuishi in Iwate Prefecture.


Case Material : Stainless Steel
Case Diameter : 40mm
Case Thickness : 12.8mm
Case Length : 47mm
Lug Width : 21mm
Crown : Screw Down
Strap/Bracelet : Stainless Steel w. three-fold clasp
Crystal : Dual Curve Sapphire
Caseback : Stainless Steel with Sapphire Crystal
Caliber : 9S85
Type : Hi-Beat 36000
Power Source : Automatic
Jewels : 37
Accuracy : +5 to -3 seconds per day (when static)
Duration : 55 Hours
Features : Time, Date
Water Resistance : 100m
Magentic Resistance : 4,800 A/m
The 62GS case design, first introduced in 1967, offers a striking look when paired with the vibrant dial.
The finely detailed dial evokes the autumnal equinox by representing clouds as they float through the autumn sky
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