The Watchery offers the Luminox Men's Chronograph Black Ion Watch, model no. 8362-RP, for $579.99 with free shipping. That's the lowest total price we could find by $26. It features a black ion plated stainless steel case and bracelet, date display, Swiss quartz movement, and water resistance to 650 feet. Deal ends August 31.

Update: The price has dropped to $565.

Update 2: Even better, coupon code "AUGUST50" slices it to $515.