Seiko Automatic SRP701 SRP701K1 SRP701K Men"s Watch Built with them in mind who are looking for a transition from the oh-so-common quartz. The mechanical domain is always feared for a lack of consistent accuracy, a stigma that turns obsolete with the Seiko automatic. The max deviation you may expect is +15 seconds a day, so unless you are setting off for a life-saving mission where detonations and firing sequences are going to go for a toss if you miss a second, trust this one to keep you company. Features: Stainless Steel Case Stainless Steel Bracelet Automatic Movement Caliber: 4R35 Hardlex Crystal White Dial Batons Dial Markers Date Display Push Pull Crown See Through Case Back Deployment Clasp 100M Water Resistance Approximate Case Diameter: 42mm