Seiko Prospex Sea Stainless Steel Silicone Band Automatic With Manual Winding SPB317

Case Material: Stainless steel
Case Size: Thickness:12.3mm Diameter:41.0mm Lug-to-lug:46.9mm
Crystal; Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, index(es) and bezel
Band Material: Silicone
Distance between lugs: 20
Caliber Number: 6R35
Movement Type: Automatic with manual winding
Precision: 25 to -15 seconds per day
Power reserve: Approx. 70 hours
Jewels: 24
Functions: Stop second hand function, Date display
Water Resistance: 200m / 660ft diver's
Magnetic Resistance: 4,800 A/m
Weight: 100.0g
Features: Unidirectional rotating bezel, Screw-down crown, Screw case back