Up for sale is a very nice automatic chronograph watch which was made for Yokohama Tire for promoting their AVS wheel line. It is in very good condition, service history is unknown but running strong, keeping perfect time and all chronograph functions work as it should. It measures 38mm without crown and 42.5mm lug to lug, lug width is 18mm.
I'm asking 456 USD (or equivalent in Eur) plus shipping for it. Bare 7750 movement is selling for more than 400 USD in the market . A very good starting mechanical chronograph for your boy
Please see the below pictures for more details: