“ASTRON” is the world’s first analog GPS solar watch, which accurately displays the time at the present location anywhere in the world. It recognizes all the currently recognized 39 time zones on earth by receiving GPS signals from the global network of GPS satellites.
“Kinetic” is one of our unique watches, which contains an internal electrical generator operated by the kinetic movement of the user’s wrist. The generated electricity is stored in a rechargeable battery that requires replacement less frequently than the conventional cell battery in a quartz watch.
Click below to see the table showing the various grades of water resistance provided by Seiko watches, and for the protection they provide in normal use.
Lumi Brite is a new luminous material, brighter and longer lasting than conventional luminous paints, and completely free of radioactive materials, making it safe for both people and the environment.
If you need information on your own watch, please contact the nearest Authorized Seiko Customer Service Center.
Features and operations as well as instruction manuals for some calibers are available below.
"Grand Seiko" is a luxury brand that offers timepieces made by master craftsmen in Seiko’s two exclusive watchmaking studios, using exclusive movements and the highest grade materials. Each Grand Seiko watch is instantly recognizable because of its simplicity of form and its understated elegance. From the very first Grand Seiko watch in 1960 to the latest collection of today, every Grand Seiko has shared the functional beauty and design purity that has always been its hallmark. Grand Seiko is, simply put, the very best of Seiko.
"Spring Drive" is our unique automatic watch with one-second-a-day accuracy. It is the only watch movement in the world that is powered by a main spring and has a regulator without an escapement; it is a watch that combines the beauty of the mechanical watch with the precision of electronic timekeeping.
A mechanical watch, which is run by a spring is easily influenced by the environment or the conditions in which it is used. This affects the acuracy of mechanical watches.
The accuracy of the mechanical watch varies slightly each day as it is influenced by various conditions of use, and is therefore unstable. It varies depending on several factors such as the amount the spring is wound, movements of your arm, temperature, and the position of the watch.