Seiko Presage Enamel Automatic SPB047

Caliber 6R15Vibrations: 21,600 vibrations per hour (6 beats per second)
Power reserve: 50 hours
Number of jewels: 23Specifications: SPB047Stainless steel case, Enamel dial
Dual-curved sapphire crystal with anti-reflective coating
Screw see-through case back
Diameter: 40.5mm, Thickness: 12.4mm
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Crocodile strap with three-fold clasp with push button release