A spring drive model that brings together unique and shining parts into a permanent beauty. The third mechanism “Spring Drive”, which is powered by the mainspring used in mechanical watches and enables high precision equivalent to that of quartz watches, is housed in a case that stands out from other Grand Seiko watches. I did. The case design, which shines in the light, has a mirror finish on multiple sides, and the white dial, which has been super-three-dimensionally stamped, is both easy to see and has a high quality feel. Bold crown guards and legs have a unique presence that has never been seen before at Grand Seiko. The movement of the second hand, which is different from the mechanical and quartz movements created by the original mechanism, is a sweeping hand movement that flows smoothly over the dial. The maximum winding duration is about 72 hours (about 3 days), and you can check the remaining operating amount on the power reserve display at the bottom left.
Caliber: 9R65 / Drive period: Maximum winding time lasts about 72 hours (about 3 days) / Accuracy: Average monthly difference ± 15 seconds (equivalent to daily difference ± 1 second) / Number of jewels 30 stones / Power reserve display function / Second hand stop Function / Reinforced waterproof for daily life (10 atm) / Back lid with lion crest / Calendar (date) function / Screw lock type crown / Screw back / Magnetic resistance type 1 / Made in Japan / Arm circumference (maximum) Approx. 20 cm
Battery: 1 Unknown Battery
Is Discontinued By Manufacturer: No
Packing size: 16.76 x 16.51 x 11.94 cm; 153 g
Date available on Amazon.co.jp: 2017/4/25
Manufacturer: SEIKO WATCH
Manufacturer Reference: SBGA225