Auto and manual-winding mechanics, caliber 4R35, stop second
Movement on 23 jewels, power reserve of about 40 hours
Steel bracelet and case of original shape
Hardlex mineral glass from Seiko
Lumibrite phosphor really long glow, personally checked
The crown is screwed down, the case back is screwed down
Water resistance 200 meters
Dimensions: diameter 43.8 mm, thickness 12.8 mm, weight 200 g