The second hand on any automatic watch (one without a battery that winds by moving it) should have a series of tiny movements for each second that ticks by; not just one click per second. Also, all parts should have a very clean stamped steel look. Many cheaper watches will lack the detail seen in authentic watches.
Unfortunately, there are some very good fakes out there. These are usually over $100. The only way to truly tell with these would be to go to a watch smith and have them open it.
Answers & Comments
It's not a Rolex Daytona. Definitely fake.
The second hand on any automatic watch (one without a battery that winds by moving it) should have a series of tiny movements for each second that ticks by; not just one click per second. Also, all parts should have a very clean stamped steel look. Many cheaper watches will lack the detail seen in authentic watches.
Unfortunately, there are some very good fakes out there. These are usually over $100. The only way to truly tell with these would be to go to a watch smith and have them open it.