Grand Seiko Sport Collection GMT
The First Grand Seiko triple time zone model, with rotating bezel and 9S mechanical calibre. Midnight blue dial and blue and white sapphire crystal bezel.
Powered by the 9S86 Mechanical movement; sophisticated watchmaking innovation through its precision controlling mainspring, the hairspring, and the escapement. Together the movement showcases the power and dynamism of the Mechanical Hi-Beat 36,000.
Grand Seiko: the relentless quest for precise timekeeping from the pinnacle of Seiko Watch Corporation’s in-house manufacture.With leading watchmaking, durability and legibility, every Grand Seiko is still handmade in Japan by elite craftsmen and women.
This high-specification movement delivers the same accuracy (±5 to -3 seconds a day) and the same power reserve (55 hours) as the core Calibre 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 second hand so that the highly accurate timekeeping delivered by the Hi-Beat 36000 is not lost. Calibre 9S86 is the embodiment of the Grand Seiko ideal of high accuracy, maintaining exceptional precision in both the essential time display and the GMT function.
Automatic with manual winding mechanism
Mean daily rate
±5 to -3 seconds per day
Approximately 55 hours
36,000 vibrations per hour
Number of jewels
– Dual time function with 24-hour hand
– Quick correction function of time difference adjustig to a calendar