one sub chrono Seiko sporty looks very cool ... cal. 6139 ca.70sSeiko 6139-7060 chrono with 30-minute sub-dial. Keeps good time, all chrono functions work correctly and the sweep hand resets to bang on 12 o'clock, inner rotating bezel working properly
spec.40mm across diameter
44mm lug to lug
About 13mmm depth
18mm lugs
i thought this kind of seiko dial is the rare one, with major black colour but have blue colour in sub second at six o'clock position and khaki colour from maker 12 till marker 3, all part are genuine with red hand and thin white hand for chrono and steel hands for minute and hour
what do you think about it ?
