Echoing the rich green of one of the 2,000 types of moss that can be found in Japan, this Grand Seiko Sport Spring Drive GMT Men\'s Watch is a true blend of time, nature and beauty. At A Glance Presented on a stainless steel bracelet 40.5mm case size with 200m water resistance Green dial and ceramic bezel Silver baton hour markers with yellow GMT hand, date window at 3 o\'clock, and Spring Drive sub dial at 8 o\'clock Dual-curved sapphire crystal glass Powered by Spring Drive, Grand Seiko’s unique calibre, which combines the motive force of a mainspring found with the high precision of a quartz watch Power reserve of up to 72 hours