Grand Seiko Heritage Collection Manual Winding 36.5 MM SS Watch SBGW297

The 44GS, the watch released in 1967 that was the first to fully embody the Grand Seiko Style, has evolved into a modern model with contemporary practicality. The SBGW297 is a manually wound mechanical model that features the smallest case diameter of the 44GS lineup at 36.5 mm. The watch is designed for ease of wear with its moderate size and comfortable bracelet. The thin, compact case and multifaceted, diamond-cut indexes sparkle beautifully and harmonize with the refined white dial, enhancing legibility. Protecting the dial, a box glass imparts a warmth to the design, further connecting the watch to its mid-century predecessor.

Exterior

Exterior:          Stainless steel

Case back:       Screw case back

Glass Material:            Box shaped sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size:        Diameter 36.5mm Lug-to-lug 42.7mm Thickness 11.6mm

Band width:    18mm

Clasp type:      Three-fold clasp with push button release

Movement

Caliber no.:     9S64 Instructions

Movement Type:         Manual winding

Power reserve:            Approx. 72 hours(3 days)

Mean daily rate:          +5 to -3 seconds per day

Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.

Normal usage accuracy:         +10 to -1 seconds per day

Functions

Water resistance:        10 bar

Magnetic resistance:   4,800 A/m

Other details / Features:        

24 jewels