This Tag Heuer Aquaracer 500M Calibre 5 43mm Dive watch is the best watch i think from Tag Heuer Aquaracer,The water resistance is up to an impressive 500 meters. I know there are a lot of 1000m dive watches out there, but really? Is that necessary. While there will inevitably be quartz versions of the new Aquaracer line, the first models all have automatic mechanical movements. Powering the watch is of course the Tag Heuer Calibre 5 movement. I don't know much about the movement actually, but as far as I know it is your standard Tag Heuer branded ETA movement. However, the Calibre 5 is NOT to be confused with the Tag Heuer Calibre S, which is something altogether different. Size wise things have grow up a bit, but nothing massive. The steel case is 43mm wide being 48mm including the crown. Pretty wearable, even with the large aggressive looking crown. Retained from the old Aquaracer watches is a similar looking steel bracelet, but there is a newly styled rubber