Grand Seiko Heritage

A classic and elegant mechanical GMT

This classic GMT watch combines the style that has long captivated watch lovers with an evolved Caliber 9S66 movement. The watch has a 3-day power reserve and combines the latest in hairspring technology with an escapement developed through MEMS technology to achieve high accuracy and stability when worn. The design embodies a pure classical elegance with a box-shaped sapphire crystal, Zaratsu polished lugs, a brown leather strap, and a blue steel 24-hour hand complementing a deep ivory dial. 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 39.5mm × Thickness 13.7mm
Band Material : Crocodile leather
Clasp type : Three-fold clasp with push button release

Movement
Caliber no. : 9S66 Instructions
Movement Type : Automatic with 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 : 88.0 g
Other details / Features :
・24-hour hand (dual time display function)
・35 jewels
・Calendar-linked time difference adjustment function
・Case back with 6 screws
・Case back with lion emblem
・Date display
・See-through case back
・Stop second hand function