Grand Seiko SBGW305

Features

As the saying goes, good things come in small packages. With its moderate size and box-shaped sapphire glass, SBGW305 abounds in midcentury charm and elegance. Thanks to a generous application of Zaratsu polishing, the classically styled case shines beautifully in the light. The see-through case back provides a window into the beauty of the manually wound movement within. An elegant multi-row bracelet that stands out for its meticulous craftsmanship fits comfortably on the wrist.

Specifications

Exterior

Exterior: Stainless steel

Case back: See-through case back

Case back with 6 screws

Glass Material: Box shaped sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size: Diameter 37.3mm Lug-to-lug 44.3mm Thickness 11.7mm

Band width: 19mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 200mm

Movement

Caliber no.: 9S64

‍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: Splash Resistant

Magnetic resistance: 4,800 A/m

Other details / Features:

• 24 jewels