This is the Tag Heuer Aqua Racer Ref:5010 divers watch, it is very nice size 43mm stainless steel chunky with an automatic Cal 16 movement, also with the daydate function as well as a chronograph. This movement tag Heuer have used on a good few of there models, part of the divers range water resistant to 300 meters. Overall a good work horse watch for the money.