Case | Case Material | stainless steel | | Crown | push down | | Water Resistance | 30m | | Movement | Movement Type | Manual, Spring Drive | | Movement | Grand Seiko Caliber 9R31 | | General | Warranty | 5 Years Manufacturer warranty | | Features | 9R31 has an innovative dual-spring barrel that contains two mainsprings set in parallel and delivers a power reserve of 72 hours., Dual-Spring Barrel, Power reserve indicator. A manual-winding Spring Drive caliber made in the Shinshu Watch Studio | |
