The Grand Seiko GMT watch celebrates ever-changing seasons.
In Japan, each of the four seasons of the year is experienced in six phases and all have their own distinct characters. The subtle changes from one to the next bring the nature of time ever closer to our senses. The GMT watch celebrates one of the year’s 24 seasonal phases or sekki.
Shōsho. High summer approaches and, at last, the rainy season ends. The warm wind creates delicate ripples in the many thousands of lakes and ponds that shimmer in the early summer sun throughout Japan. The wave pattern dial brings Shōsho to life as the long, tapered seconds hand, driven by the high beat caliber, moves powerfully across the dial.
|Case back:||See-through case back|
|Case back with 6 screws|
|Glass Material:||Box shaped sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 39.5mm Lug-to-lug 46.9mm Thickness 14.1mm|
|Clasp type:||Three-fold clasp with push button release|
|The perimeter of Band:||185mm|
|Caliber no.:||9S86 Instructions|
|Movement Type:||Automatic with manual winding|
|Power reserve:||Approx. 55 hours|
|Mean daily rate:||
+5 to -3 seconds per day
|Water resistance:||Splash Resistant|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.