|Drive system||Mechanical Automatic (Hand winding capability)|
|Case back||See-through screw case back with sapphire crystal
|Glass||High definition dual-curved sapphire crystal with anti-reflective coating|
|Bracelet||Solid stainless steel|
|Buckle||Stainless steel with three-fold clasp with push button release|
|Accuracy||+5 ~ -3 seconds/ day|
|Water resistance||10 bar|
|Magnetic resistance||More than 4800 A/m (60 gauss)*|
|Case thickness||13.0 mm|
*The Grand Seiko mechanical watch conforms to the magnetic resistance standard† ISO764:2002.
† The magnetic resistance standard ISO764:2002 is the standard developed by the International Organization for Standardization, and is a magnetic resistance standard capable of withstanding a DC (direct current) magnetic field of 4800 A/m.