Grand Seiko Elegance Manual Mens Watch SBGW283G Powered by the slim, hand-wound movement, Caliber 9S64, this watch is the epitome of simple refinement. The dial is simple and clean but, when viewed through the sapphire case back, the intricate perfection of the engineering of the hand-assembled and adjusted movement is abundantly and satisfyingly clear. The dial is in a delicate shade of pale blue, the color of the skies above Mt. Iwate as summer begins, the season known as Kishun. 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 Band Material: Leather Strap The perimeter of Band: 195mm Movement Caliber no.: 9S64 Movement Type: Manual winding Power reserve: Approx. 72 hours(3 days) Mean daily rate: +5 to -3 seconds per day Functions Water resistance: Splash Resistant Magnetic resistance: 4,800 A/m Other details / Features: 24 jewels