Men's Grand Seiko Heritage Limited Edition Watch, Blue Dial SBGR321

The brilliant blue sky over Mt. Iwate at dawn that greets the watchmakers and technicians of the Grand Seiko Studio Shizukuishi is a sight to behold, especially when it is tinged with the red of the morning sun. It is this combination of colors that has inspired the design of this new automatic timepiece. The blue of the dial is echoed in the vivid blue of the titanium sections of the oscillating weight and a red ring inside the sapphire crystal case back mirrors the glow of the morning sun as it rises and causes light to flood through the broad windows of the studio. The watch is powered by Caliber 9S65 which delivers a power reserve of 72 hours and a precision rate of +5 to -3 seconds a day. It is assembled, adjusted and inspected by hand at the recently opened Grand Seiko Studio Shizukuishi from where Mt Iwate’s inspiring and graceful form is clearly visible.* The blue of the oscillating weight is achieved through an anodic oxidation process in which metals are subjected to electrolysis so as to generate an oxide film. This oxide film produces color according to the light refraction index when the thickness of the oxide film is carried.

Exterior:

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size: Diameter 40mm × Thickness 13mm

Clasp type: Three-fold clasp with push button release

Movement:

Caliber No: 9S65

Movement Type: Automatic with manual winding

Approx. 72 hours(3 days)

Accuracy: +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)

Features:

Water resistance: 10 bar

Magnetic resistance: Equipped

Weight: 159.0 g

35 jewels

Case back with lion emblem

Date display

LIMITED EDITION on the case back

Screw case back

Screw-down crown

See-through case back

Serial number engraved on the case back out of 2,500

Stop seconds hand function

Grand Seiko Style #: SBGR321