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Hi-Beat 36000 GMT SBGJ273 Grand Seiko Elegance Collection Review
Brent Miller TimeSep 18, 2023
39.5mm case
14.4mm thick
46.9mm lug to lug
19mm lug width
Cal. 9S86 w/ 55 hours power reserve
30m water resistance
148.7 grams
$7,100
https://brentmiller.com/
[email protected]
717-569-5450
Features
"Yuka Momiji"
In Japan, an appreciation for the changing seasons is woven into the fabric of daily life. Grand Seiko celebrates the ebullient reds of autumn with its latest creation, the Hi-Beat 36000 GMT SBGJ273. With its red striated dial, this watch calls to mind the way lacquered wooden floors in a traditional Japanese building reflect the leaves of outside maple trees, expressing yuka momiji.The SBGJ273 comes in a classic case shape from the Elegance Collection that was influenced by the very first Grand Seiko watch from 1960. Its rounded case and raised box-shaped crystal ensure mid-century good looks, while a gold-colored GMT hand adds to the feeling of autumn.
The Hi-Beat 9S86 movement uses MEMS for escapement parts and Spron alloys for the mainspring and hairspring. This movement provides excellent rate stability, accuracy to +5/-3 seconds per day, and resistance to shocks while maintaining a power reserve of 55 hours when fully wound.
User Manual
This high-specification movement delivers the same accuracy (+5 to -3 seconds a day) and the same power reserve (55 hours) as the core Caliber 9S85, while also offering the GMT function that the international traveler needs to ensure that the accuracy of the time shown is not compromised when the time zone is changed. The GMT hand shows the time in the home time zone.
Pulling the crown out by one notch enables the hour hand to be adjusted without stopping the seconds hand so that the highly accurate timekeeping delivered by the Hi-Beat 36000 is not lost. Caliber 9S86 is the embodiment of the Grand Seiko ideal of high accuracy, maintaining exceptional precision in both the essential time of day display and the GMT function.
Specifications
| Winding mechanism | Automatic with manual winding mechanism |
|---|---|
| Mean daily rate*1 | +5 to -3 seconds per day |
| Normal usage accuracy | +8 to -1 seconds per day |
| Power reserve | Approximately 55 hours |
| Vibrations | 36,000 vibrations per hour (10 beats per second) |
| Number of jewels | 37 jewels |
| Features | -Dual time function with 24-hour hand -Quick correction function of time difference adjusting to a calendar |
- Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
Case
Case Material : Stainless Steel
Case Diameter : 39.5mm
Case Thickness : 14.1mm
Case Length : 46.9mm
Lug Width : 19mm
Dial Color : Red
Crown : Push Crown
Strap/Bracelet : Stainless Steel w. three-fold clasp
Crystal : Box-Shape Sapphire
Caseback : Stainless Steel with Sapphire Crystal
Movement
Caliber : 9S86
Type : Hi-Beat 36000
Power Source : Automatic
Jewels : 37
Accuracy : +5 to -3 seconds per day (when static)
Duration : 55 Hours
Functions
Features : Time, Date, GMT
Water Resistance : 30m
Magnetic Resistance : 4,800 A/m
Thanks for posting this one up, Mike. 
