23 jewels 7S36 37m 100m Sports watch in excellent working  and cosmetic condition. This is an all-original watch . except the replacement strap., which is OEM Seiko for divers watches. Its bezel is non-rotational, just numbered big for quick sighting and bulky w/  rounded edges, acting as bumpers, since it is  a sports watch ready to be subjected to abusive physical activity. It still looks and performs like new.