Seiko SDGZ006 Brightz Automatic Chronograph Black Dial

Mechanical Automatic Movement
34 jewels
Second hand stop function
Stopwatch function
Tachymeter
Screw back
See-through case back
Caliber 8R28
Stainless steel case back lid with Diamond shield coating
Sapphire glas with Super clear coating
LumiBright (needle, index)
+25 Seconds to -15 seconds / day Accuracy
10 bar Waterproof
Anti-magnetic
50.0 x 42.5mm case size
Thickness 14.60mm
184g Weight