Product Description
2022 marks the 15th anniversary of Grand Seiko’s first Spring Drive chronograph, and to celebrate this important milestone Grand Seiko presents SBGC247, a limited edition Spring Drive Chronograph GMT with a dial inspired by the wintery mountains of Shinshu.
Rendered in High-Intensity Titanium, the case measures 43.5mm in diameter and 16.1mm in thickness. It features an eye-catching combination of mirror-polished and hairline-finished surfaces, which is made possible due to the type of titanium alloy used here and Grand Seiko’s Zaratsu finishing method. High-Intensity Titanium is also notable for its lightweight quality (relative to steel) and its resistance against corrosion. A dual curve sapphire crystal sits on top of the dial. A sapphire crystal on the case back offers a view of the 9R96 Spring Drive Chronograph GMT movement within.
Caliber 9R96 offers an impressive accuracy of ±0.5 seconds per day, and, because of the distinct nature of Spring Drive, the chronograph function measures elapsed time to the exact moment and not just to the nearest fraction of a second, a feature made possible courtesy of the glide motion hand. The GMT feature also has jump-hour functionality and SBGC247 can two separate time zones.
Reference Number - SBGC247
Exterior
Case Material - High-intensity titanium
Caseback - High-Intensity Titanium with Sapphire Crystal
Glass Material - Dual-curved sapphire crystal
Case Size - Diameter 43.5mm, Lug-to-Lug 21mm, Thickness 16.1mm
Movement
Caliber no. - 9R96
Movement Type - Spring Drive
Power Reserve - Approx. 72 hours
Accuracy - ±0.5 second per day / ±10 seconds per month (average)
Functions
Water Resistance - 100m
Magnetic Resistance - 4,800 A/m
Other details / Features - Time, Date, Power Reserve Indicator, Stopwatch, GMT