Grand Seiko Evolution 9 Collection Spring Drive 37mm Watch book-appointment and a dotted minute track

and a dotted minute track on the outer zone

reveiling the inner workings of the movement and black calf leather strap

POST WITH BUTTERFLY BACK

with their movements showcasing a single-crystal silicon balance spring

Its rugged yet refined design makes it perfect for both everyday wear and outdoor adventures

Grand Seiko Evolution 9 Collection Spring Drive 37mm Watch book-appointment and a dotted minute trackThe pursuit of high accuracy has been the cornerstone of Grand Seikos values since its first watch was created in 1960. In the late 1970s, the development of Spring Drive began with an aim to harmoniously blend the traditional energy of a mainspring with state of the art electronic watchmaking advancements. In 2004, Grand Seiko introduced the Spring Drive Caliber 9R65 with a monthly rate of 15 seconds. Today, this legacy of accuracy in watchmaking