SEIKO PRESAGE Style 60's Skeleton Automatic SSA461J1
 
Caliber 4R72
    Vibrations: 21,600 vibrations per hour (6 beats per second)
    Power reserve: 41 hours
    Number of jewels: 23

Specifications
    Stainless steel case
    Glass: Box-shaped Hardlex
    Screw see-through case back
    Diameter: 39.5mm, Thickness: 12mm
    Weight : 64g
    Water resistance: 5 bar
    Magnetic resistance: 4,800 A/m
Band:  Leather
Dial: Black
Three year International warranty