Grand Seiko Manual SBGK017

Reference Number - SBGK017

Exterior

Case Material - Stainless steel

Case Back - See-through and screw case back

Glass Material - Dual-curved sapphire crystal

Glass Coating - Anti-reflective coating on inner surface

Case Size - Diameter 39mm, Lug-to-Lug 44mm, Thickness 11.6mm

Band Material - Stainless Steel Strap and Crocodile Leather Strap

Clasp type - Three-fold clasp with push button release

Movement

Caliber no. - 9S63

Movement Type - Manual winding

Power reserve - Approx. 72 hours

Mean Daily Rate - +5 to -3 seconds per day

Normal Usage Accuracy - +10 to -1 seconds per day

Functions

Water resistance - Splash Resistant

Magnetic resistance - 4,800 A/m

Other details / Features - 31 jewels, Equipped with small seconds hand, Power reserve indicator