Grand Seiko Heritage

A 3-day power reserve with lasting quality

The watch has a 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn. The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.

Exterior
Case Material : Stainless steel
Glass Material : Box shaped sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 37.3mm × Thickness 11.6mm
Band Material : Crocodile leather

Movement
Caliber no. : 9S64 Instructions
Movement Type : Manual winding
Power reserve : Approx. 72 hours(3 days)
Accuracy : +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)

Functions
Water resistance : Splash Resistant
Magnetic resistance : Equipped
Weight : 61.0 g
Other details / Features :
・24 jewels
・Case back with 6 screws
・Case back with lion emblem
・See-through case back
・Stop second hand function