Grand Seiko Elegance SBGE271

Grand Seiko Elegance Spring Drive GMT Autumn Kanro 40.2mm SBGE271

Case: Brushed & polished stainless steel case. Black/dark dial with short brushstrokes pattern dial. Brushed & polished faceted hour & minute hands. Polished central seconds hand. Applied brushed & polished faceted index hour markers. Fine printed minutes/seconds track. Date window at 3 o'clock. GMT/Dual Time-zone function: Indicated by the central yellow gold arrow-head hand, which makes a single revolution once every 24 hour hours. 24 hours indications. The 2nd time-zone time is indicated in 24 hour mode to eliminate confusion between day & night at the additional time-zone. Power Reserve Indicator: Located between 7 & 8 o'clock. Bracelet: Fitted on its original brushed & polished edges stainless steel bracelet with a push-button deployant clasp. The bracelet is fully linked & will fit up to an 8" wrist. Movement: Powered by a Grand Seiko Spring Drive caliber 9r66: The Spring Drive movement is for the most part mechanical, but with an electrical powered regulating mechanism resulting in an extremely accurate timepiece. No external source of power (such as a battery) is required. The unwinding force of the mainspring generates a slight electrical current. The electrical power is then used to activate & power a quartz oscillator which vibrates at 32,786 Hz & transmits a precise reference signal to the Integrated Circuit. The IC compares the speed from the oscillator to the speed of the glide wheel (which drives the gears) and applies a magnetic brake when it detects the glide-wheel turning too fast. The seconds hand moves in a continuous extremely smooth gliding motion and is accurate up to +/- 1 second per day. Contains 30 jewels & has an approximate power reserve of 72 hours (3 days).