Bringing together technical excellence and elegant sophistication, the Grand Seiko Heritage collection features a stunning range of long-cherished watches that are perfect for every occasion.

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40mm × Thickness 13.3mm
Clasp type : Three-fold clasp with push button release

Functions
Water resistance : 10 bar
Magnetic resistance : Equipped
Weight : 154.0 g

Other details/Features:
37 jewels
Case back with lion emblem
Date display
Screw case back
Screw-down crown
See-through case back
Stop seconds hand function

Calibre 9S85:

The challenge of making a high-beat movement is one that only a few watchmakers choose to accept. With its higher oscillation rate of ten beats per second, greater accuracy is achievable, but this increased precision comes at a price because the faster rotational speed can take its toll on the power reserve and even the longevity of the whole movement. Grand Seiko’s 10 beat movement meets these challenges and delivers an accuracy of +5 to –3 seconds a day, a power reserve of 55 hours and the durability for which every Grand Seiko watch is renowned. Calibre 9S85 is the result of many years of development and of advances both in the design and manufacture of components and in the materials themselves.

Driving system
Automatic with manual winding mechanism

Mean daily rate
+5 to -3 seconds per day

Normal usage accuracy
+8 to -1 seconds per day

Power reserve
Approximately 55 hours

Vibrations
36,000 vibrations

Number of jewels
37 jewels

Features
– Date display

Specifications