New Seiko Prospex Alpinist SPB507J1.
Automatic with manual winding capacity
Caliber 6R55; Jewels: 24
Power reserve: approx. 72 hours (3 days)
Stainless steel case (super-hard coating)
D39.5 mm x L46.4mm x T12.7 mm
Sapphire crystal with inner anti-reflective coating
Lumibrite on hands and indices
Water resistance: 200m
Rotating compass bezel
See-through case back
Screw-down crown and case back
Three-fold clasp with push button release
Stop second hand function
Made in Japan