Grand Seiko unveils the 44GS 55th Anniversary Limited Edition

Seiko has debuted two new timepieces that utilize the latest watchmaking technologies with the SLGA013 (above) and the SLGH009. The SLGA013 is powered by the 9RA2, a Spring Drive automatic with a power reserve of 120 hours while the SLGA013 features the Hi-Beat 36000 Caliber 9SA5, which has a power reserve of 80 hours. Both watches feature 40mm cases and are constructed out of Grand Seiko's Ever Brilliant Steel, a stainless steel that is more corrosion resistant and durable than most steels found in high-end watches. 

Both watches are limited to 550 units. 

$9,500-$10,500, grand-seiko.com