Grand Seiko SBGR317

Specifications

Exterior

Exterior:      Stainless steel

Case back:  See-through & Screw case back

Glass Material:              Dual-curved sapphire crystal

Glass Coating:              Anti-reflective coating on inner surface

Case size:    Diameter 40.0mm Lug-to-lug 46.6mm Thickness 13.0mm

Band width:                  20mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 195mm

Movement

Caliber no.: 9S65 Instructions

Movement Type:          Automatic with 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.

Functions

Water resistance:          10 bar

Magnetic resistance:     4,800 A/m

Other details / Features:                

• Screw-down crown
• 35 jewels

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