Grand Seiko welcomes four new limited edition Spring Drive Black Ceramic models that combine practicality and durability, the two vital attributes of all the best sports watches and are also core values of Grand Seiko.
All use Spring Drive GMT calibers and two feature chronographs. The materials and five-piece construction are designed for strength and lightness. The inner case is made from high-intensity titanium and the outer shells and bezel are zirconia ceramic which is stronger and tougher than any other fine ceramic and seven times harder on the Vickers scale than stainless steel.
This combination of materials makes the case 25% lighter than stainless steel and virtually impervious to scratches. While the black color is new to Grand Seiko, the clear ridges on the facets of the case and the diamond-cut hands and markers make the watches instantly recognizable as Grand Seiko.
All the four models feature 46.4mm diameter case. The first two models (references SBGC015 and SBGC017) have a thickness of 16.1mm and house the Caliber 9R96 Spring Drive Chronograph GMT movement.
The remaining two watches (references SBGE037 and SBGE039) have 15.0mm thick cases and come with 9R16 Spring Drive GMT movement. Both movements are automatically driven and have a power reserve of 72 hours.
Among the two Grand Seiko Spring Drive Chronograph GMT models, SBGC015 has a black dial whereas SBGC017 comes with a green dial featuring fir tree motif.
Among the remaining two Grand Seiko Spring Drive GMT watches, SBGE037 features a black dial and SBGE039 has a blue dial.
The Grand Seiko SBGC017 is a limited edition of 600 pieces. The SBGC017, SBGE037, and SBGE039 models are limited to 700 pieces each.
Collection: Grand Seiko Spring Drive Black Ceramic Limited Edition
References SBGC015, SBGC017, SBGE037 and SBGE039
SBGC015 and SBGC017: Caliber 9R96, Spring Drive Chronograph GMT
SBGE037 and SBGE039: Caliber 9R16, Spring Drive GMT
Driving system: Automatic with manual winding mechanism
Power reserve: 72 hours
Accuracy: ±0.5 seconds per day (±10 seconds per month)
Chronograph up to 12 hours (9R96)
Number of jewels: 50 jewels (9R96), 30 jewels (9R16)
Case, dial and strap
High-intensity titanium and ceramic case
High definition dual-curved sapphire crystal with anti-reflective coating
Screw see-through case back, Screw-down crown
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Thickness: 16.1mm (SBGC015 and SBGC017) 15.0mm (SBGE037 and SBGE039)
Crocodile strap with three-fold clasp with push button release
Approximate recommended retail prices in Europe: 13,500 Euro (SBGC015 and SBGC017), 11,000 Euro (SBGE037 and SBGE039)
Limited edition: 600 pieces (SBGC017), 500 pieces (SBGC015, SBGE037 and SBGE039)